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Dense Dahlia

#b5390d
Notes

Dense Dahlia (#B5390D) is a true orange with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (16°, 87%, 38%) 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
#b5390d
RGB
rgb(181, 57, 13)
HSL
hsl(16, 87%, 38%)
HWB
hwb(16 5% 29%)
OKLCH
oklch(52.2% 0.167 37.0)
P3
color(display-p3 0.6556 0.2598 0.1259)
HSV
hsv(16, 93%, 71%)
LAB
lab(42.43% 48.44 50.14)
LCH
lch(42.43% 69.72 45.99)
CMYK
cmyk(0%, 69%, 93%, 29%)

Etymology

Dense
adjective

Latin dēnsus, thick / crowded — sharing root with English condense. As a color modifier, dense implies a saturated-and-tightly-packed quality where the hue carries maximum pigmentation per visual unit-of-area. Sits at the bold-and-saturated end of the grid, parallel to thick and concentrated in usage.

Dahlia
noun

The genus Dahlia — Mexican composite-family flowers bred across the nineteenth century into thousands of cultivars in every color from white to dark purple. The color refers to a fully opened orange decorative dahlia: a saturated, slightly red orange with the satin finish of multi-rayed composite flower. Warmer than zinnia, deeper than calendula.

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.

#b5390d
Original
#5e5302
Protanopia
#7d6e01
Deuteranopia
#c80832
Tritanopia
#505050
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).
AAon White
5.91:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.56:1

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
##B5390D
Display P3
Display P3
color(display-p3 0.6556 0.2598 0.1259)
P3 has subtle headroomOKLCH chroma 0.167

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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