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Strobing Yamabuki

#fb4c03
Notes

Strobing Yamabuki (#FB4C03) is a true orange with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (18°, 98%, 50%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#fb4c03
RGB
rgb(251, 76, 3)
HSL
hsl(18, 98%, 50%)
HWB
hwb(18 1% 2%)
OKLCH
oklch(66.0% 0.220 36.9)
P3
color(display-p3 0.9095 0.3524 0.1623)
HSV
hsv(18, 99%, 98%)
LAB
lab(57.74% 64.16 68.02)
LCH
lch(57.74% 93.50 46.67)
CMYK
cmyk(0%, 70%, 99%, 2%)

Etymology

Strobing
adjective

Greek stróbos, whirling — present-participle of strobe. As a color modifier, strobing implies a saturated-and-pulse-flashing quality, the bright color of concert-strobe-light and photographic-strobe high-frequency-pulse light emission. Sits at the bright-and-flashing end of the grid, parallel to flashing and pulsating in usage.

Yamabuki
noun

Kerria japonica, the Japanese rose-family shrub whose bright yellow-orange flowers cover steep hillsides in late spring. Yamabuki-iro (mountain-rose color) gave Japanese its name for a saturated yellow-orange hue used in court robes and woodblock prints. The color refers to a fully open kerria flower: a saturated, slightly red-shifted yellow-orange with the satin finish of small five-petaled bloom. Warmer than canary, lighter than marigold.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#fb4c03
Original
#827200
Protanopia
#ad9900
Deuteranopia
#ff0042
Tritanopia
#6c6c6c
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
3.42:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.14:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##FB4C03
Display P3
Display P3
color(display-p3 0.9095 0.3524 0.1623)
P3 has visible headroomOKLCH chroma 0.220

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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