#64351D
Closest named color: Chestnut (#742802). oklch(38.4% 0.076 46.5), rgb(100, 53, 29).
Aa
White text reads best on this color (10.15:1).
About this color
#64351D is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.040 away. White text reads best on it, at 10.15:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #64351D |
| RGB | rgb(100, 53, 29) |
| HSL | hsl(20, 55%, 25%) |
| OKLCH | oklch(38.4% 0.076 46.5) |
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 #64351D | 10.15:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #64351D | 2.06:1 | Fails | Lc 10.7 | Not readable |
| #64351D text on white | 10.15:1 | AAA | Lc 93.3 | Preferred for body text |
| #64351D text on black | 2.06:1 | 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
#E1B6A2
oklch(80.9% 0.057 46.3)
-
Step 400
400
#D08F6F
oklch(70.7% 0.091 47)
-
Step 500
500
#C37148
oklch(63.1% 0.118 46.4)
-
Step 600
600
#AE5829
oklch(55.6% 0.127 46.7)
-
Step 700
700
#95471C
oklch(49% 0.118 46.3)
-
Step 800
800
#793B19
oklch(42.6% 0.098 46.8)
-
Step 900
900 (this color)
#64351D
oklch(38.4% 0.076 46.5)
-
Step 950
950
#3A1E11
oklch(27% 0.049 45)
#64351D 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) | #423B1B | 0.067 |
| Deuteranopia (no green cones) | #4D451C | 0.062 |
| Tritanopia (no blue cones) | #6E2C2F | 0.043 |
| Achromatopsia (no color) | #414141 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64351D
#64351D
oklch(38.4% 0.076 46.5)
- #004B61
#004B61
oklch(38.4% 0.073 225.6)
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 #64351D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.040
- Purple Brown #673A3F ΔE 0.047
- Mud Brown #60460F ΔE 0.054
- Reddy Brown #6E1005 ΔE 0.069
- Red Brown #8B2E16 ΔE 0.079
- Rust Brown #8B3103 ΔE 0.079
- Brownish Purple #76424E ΔE 0.081
- Blood #770001 ΔE 0.082
Use #64351D 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.