#64351F
Closest named color: Chestnut (#742802). oklch(38.4% 0.075 44.9), rgb(100, 53, 31).
Aa
White text reads best on this color (10.14:1).
About this color
#64351F is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.075 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.041 away. White text reads best on it, at 10.14:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.07:1 |
| White text | 10.14:1 |
Values
| HEX | #64351F |
| RGB | rgb(100, 53, 31) |
| HSL | hsl(19, 53%, 26%) |
| OKLCH | oklch(38.4% 0.075 44.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #64351F | 10.14:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #64351F | 2.07:1 | Fails | Lc 10.7 | Not readable |
| #64351F text on white | 10.14:1 | AAA | Lc 93.2 | Preferred for body text |
| #64351F text on black | 2.07:1 | Fails | Lc -9.2 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E1
oklch(93.7% 0.016 46.6)
-
Step 200
200
#ECD3C8
oklch(88.5% 0.032 45.3)
-
Step 300
300
#E1B6A3
oklch(81% 0.057 45.1)
-
Step 400
400
#D08E71
oklch(70.6% 0.091 44.5)
-
Step 500
500
#C3714B
oklch(63.2% 0.116 44.9)
-
Step 600
600
#AE582D
oklch(55.7% 0.126 45.3)
-
Step 700
700
#954720
oklch(49% 0.117 44.8)
-
Step 800
800
#793B1D
oklch(42.7% 0.096 44.7)
-
Step 900
900 (this color)
#64351F
oklch(38.4% 0.075 44.9)
-
Step 950
950
#3A1E12
oklch(27% 0.049 43.5)
#64351F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #423B1D | 0.067 |
| Deuteranopia (no green cones) | #4D451E | 0.062 |
| Tritanopia (no blue cones) | #6E2C30 | 0.042 |
| Achromatopsia (no color) | #414141 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64351F
#64351F
oklch(38.4% 0.075 44.9)
- #004B60
#004B60
oklch(38.4% 0.072 224.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #64351F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.041
- Purple Brown #673A3F ΔE 0.045
- Mud Brown #60460F ΔE 0.056
- Reddy Brown #6E1005 ΔE 0.069
- Red Brown #8B2E16 ΔE 0.079
- Brownish Purple #76424E ΔE 0.079
- Rust Brown #8B3103 ΔE 0.079
- Blood #770001 ΔE 0.081
Use #64351F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.