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Subtle Haldi

#645d4d
Notes

Subtle Haldi (#645D4D) is a true amber with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (42°, 13%, 35%) places it in the muted 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#645d4d
RGB
rgb(100, 93, 77)
HSL
hsl(42, 13%, 35%)
HWB
hwb(42 30% 61%)
OKLCH
oklch(48.0% 0.026 87.2)
P3
color(display-p3 0.3875 0.3657 0.3088)
HSV
hsv(42, 23%, 39%)
LAB
lab(39.70% -0.12 10.22)
LCH
lch(39.70% 10.22 90.69)
CMYK
cmyk(0%, 7%, 23%, 61%)

Etymology

Subtle
adjective

Latin subtilis, finely woven — used as a color modifier since the medieval period for hues that read as understated and easily missed. Subtle olive, subtle taupe: low saturation combined with optical quietness. Sits at the hushed-bucket alongside muted and modest.

Haldi
noun

The Hindi word for turmeric — the South Asian spice and ceremonial pigment used in Hindu haldi pre-wedding rituals and in gor-haldi (turmeric milk). The color refers to fresh haldi paste applied to skin in a wedding ritual: a saturated, slightly red-shifted yellow with the dusty finish of fresh-ground rhizome. Warmer than turmeric.

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.

#645d4d
Original
#615c4c
Protanopia
#635e4d
Deuteranopia
#685a59
Tritanopia
#5d5d5d
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
6.53:1
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
3.21:1

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
##645D4D
Display P3
Display P3
color(display-p3 0.3875 0.3657 0.3088)
Inside sRGBOKLCH chroma 0.026

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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