#634F12
Closest named color: Olive Brown (#645403). oklch(43.7% 0.08 89.7), rgb(99, 79, 18).
Aa
White text reads best on this color (7.90:1).
About this color
#634F12 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.080 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.019 away. White text reads best on it, at 7.90:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #634F12 |
| RGB | rgb(99, 79, 18) |
| HSL | hsl(45, 69%, 23%) |
| OKLCH | oklch(43.7% 0.08 89.7) |
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 #634F12 | 7.90:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #634F12 | 2.65:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #634F12 text on white | 7.90:1 | AAA | Lc 87.3 | Fine for body text |
| #634F12 text on black | 2.65:1 | Fails | Lc -14.8 | 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 800.
-
Step 50
50
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEAE0
oklch(93.7% 0.014 93)
-
Step 200
200
#E0D9C6
oklch(88.6% 0.027 90.1)
-
Step 300
300
#CCC09F
oklch(80.9% 0.047 90.4)
-
Step 400
400
#B39F69
oklch(70.7% 0.076 90)
-
Step 500
500
#A0873F
oklch(63.2% 0.096 90.3)
-
Step 600
600
#8B701A
oklch(55.6% 0.104 90.1)
-
Step 700
700
#765D09
oklch(49% 0.097 89.7)
-
Step 800
800 (this color)
#634F12
oklch(43.7% 0.08 89.7)
-
Step 900
900
#4F4015
oklch(37.8% 0.063 89.6)
-
Step 950
950
#2E250E
oklch(26.9% 0.039 88.3)
#634F12 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) | #594E07 | 0.020 |
| Deuteranopia (no green cones) | #5E5415 | 0.016 |
| Tritanopia (no blue cones) | #6C4743 | 0.074 |
| Achromatopsia (no color) | #515151 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634F12
#634F12
oklch(43.7% 0.08 89.7)
- #404F7E
#404F7E
oklch(43.7% 0.08 269.5)
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 #634F12, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.019
- Mud Brown #60460F ΔE 0.027
- Green Brown #544E03 ΔE 0.030
- Mud #735C12 ΔE 0.049
- Medium Brown #7F5112 ΔE 0.053
- Greeny Brown #696006 ΔE 0.054
- Army Green #4B5D16 ΔE 0.054
- Milk Chocolate #7F4E1E ΔE 0.055
Use #634F12 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.