#64330B
Closest named color: Chestnut (#742802). oklch(37.8% 0.086 54.2), rgb(100, 51, 11).
Aa
White text reads best on this color (10.39:1).
About this color
#64330B is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.086 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.037 away. White text reads best on it, at 10.39:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.02:1 |
| White text | 10.39:1 |
Values
| HEX | #64330B |
| RGB | rgb(100, 51, 11) |
| HSL | hsl(27, 80%, 22%) |
| OKLCH | oklch(37.8% 0.086 54.2) |
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 #64330B | 10.39:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #64330B | 2.02:1 | Fails | Lc 10.2 | Not readable |
| #64330B text on white | 10.39:1 | AAA | Lc 93.7 | Preferred for body text |
| #64330B text on black | 2.02:1 | Fails | Lc -8.8 | 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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F4E7DE
oklch(93.6% 0.019 57.2)
-
Step 200
200
#EDD3C3
oklch(88.4% 0.036 53.7)
-
Step 300
300
#E3B69A
oklch(80.9% 0.065 53.4)
-
Step 400
400
#D38F60
oklch(70.8% 0.104 54.9)
-
Step 500
500
#C67030
oklch(63.1% 0.133 53.8)
-
Step 600
600
#AF5800
oklch(55.6% 0.139 54.3)
-
Step 700
700
#944900
oklch(49% 0.123 54)
-
Step 800
800
#7A3B00
oklch(42.6% 0.107 54)
-
Step 900
900 (this color)
#64330B
oklch(37.8% 0.086 54.2)
-
Step 950
950
#3B1E09
oklch(27% 0.055 53.6)
#64330B 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) | #413905 | 0.071 |
| Deuteranopia (no green cones) | #4D440A | 0.064 |
| Tritanopia (no blue cones) | #6E282B | 0.055 |
| Achromatopsia (no color) | #404040 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64330B
#64330B
oklch(37.8% 0.086 54.2)
- #004865
#004865
oklch(37.8% 0.079 233.7)
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 #64330B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.037
- Mud Brown #60460F ΔE 0.052
- Purple Brown #673A3F ΔE 0.063
- Reddy Brown #6E1005 ΔE 0.067
- Rust Brown #8B3103 ΔE 0.080
- Blood #770001 ΔE 0.080
- Red Brown #8B2E16 ΔE 0.082
- Green Brown #544E03 ΔE 0.083
Use #64330B 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.