#613B0B
Closest named color: Mud Brown (#60460F). oklch(38.9% 0.08 66.4), rgb(97, 59, 11).
Aa
White text reads best on this color (9.81:1).
About this color
#613B0B is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.080 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.031 away. White text reads best on it, at 9.81:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.13:1 |
| White text | 9.81:1 |
Values
| HEX | #613B0B |
| RGB | rgb(97, 59, 11) |
| HSL | hsl(33, 80%, 21%) |
| OKLCH | oklch(38.9% 0.08 66.4) |
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 #613B0B | 9.81:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #613B0B | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #613B0B text on white | 9.81:1 | AAA | Lc 92.5 | Preferred for body text |
| #613B0B text on black | 2.13:1 | Fails | Lc -9.9 | 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
#F9F4F0
oklch(97% 0.008 61.5)
-
Step 100
100
#F2E8DE
oklch(93.6% 0.017 67.6)
-
Step 200
200
#E9D5C3
oklch(88.5% 0.033 64.4)
-
Step 300
300
#DCBA98
oklch(81% 0.06 66.8)
-
Step 400
400
#C9955E
oklch(70.8% 0.095 66.8)
-
Step 500
500
#BA792A
oklch(63.1% 0.122 66.8)
-
Step 600
600
#A36200
oklch(55.6% 0.124 66.2)
-
Step 700
700
#895200
oklch(49.1% 0.109 66.6)
-
Step 800
800
#714300
oklch(42.8% 0.095 66.9)
-
Step 900
900 (this color)
#613B0B
oklch(38.9% 0.08 66.4)
-
Step 950
950
#372108
oklch(27.1% 0.05 66)
#613B0B 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) | #473E03 | 0.052 |
| Deuteranopia (no green cones) | #50470C | 0.046 |
| Tritanopia (no blue cones) | #6B3232 | 0.062 |
| Achromatopsia (no color) | #434343 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613B0B
#613B0B
oklch(38.9% 0.08 66.4)
- #1B486D
#1B486D
oklch(39% 0.08 246.7)
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 #613B0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.031
- Chestnut #742802 ΔE 0.055
- Green Brown #544E03 ΔE 0.061
- Purple Brown #673A3F ΔE 0.068
- Olive Brown #645403 ΔE 0.074
- Dark Olive #373E02 ΔE 0.080
- Milk Chocolate #7F4E1E ΔE 0.083
- Rust Brown #8B3103 ΔE 0.085
Use #613B0B 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.