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Replete Chàm

#3337b7
Notes

Replete Chàm (#3337B7) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (238°, 56%, 46%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3337b7
RGB
rgb(51, 55, 183)
HSL
hsl(238, 56%, 46%)
HWB
hwb(238 20% 28%)
OKLCH
oklch(42.6% 0.196 273.0)
P3
color(display-p3 0.2029 0.2152 0.6904)
HSV
hsv(238, 72%, 72%)
LAB
lab(31.47% 41.06 -67.70)
LCH
lch(31.47% 79.18 301.24)
CMYK
cmyk(72%, 70%, 0%, 28%)

Etymology

Replete
adjective

Latin replētus, filled — past-participle of replēre. As a color modifier, replete implies a saturated-and-fully-pigmented quality where the hue is completely loaded with its source pigment. Sits at the bold-and-saturated end of the grid, parallel to brimming and suffused in usage.

Chàm
noun

The Vietnamese word for indigo — and vải chàm, the indigo-dyed cotton worn by H'mong, Tay, and Black Thai ethnic groups in Northern Vietnam. The color refers to a freshly chàm-dyed H'mong skirt: a saturated, slightly cool deep blue with the matte finish of multi-bath plant-dyed cotton.

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.

#3337b7
Original
#0050bb
Protanopia
#0044b5
Deuteranopia
#005a73
Tritanopia
#3f3f3f
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).
AAAon White
8.86:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.37:1

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
##3337B7
Display P3
Display P3
color(display-p3 0.2029 0.2152 0.6904)
P3 has visible headroomOKLCH chroma 0.196

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.

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