#613A18
Closest named color: Mud Brown (#60460F). oklch(38.9% 0.073 59), rgb(97, 58, 24).
Aa
White text reads best on this color (9.87:1).
About this color
#613A18 is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.073 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.038 away. White text reads best on it, at 9.87:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.073) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #613A18 |
| RGB | rgb(97, 58, 24) |
| HSL | hsl(28, 60%, 24%) |
| OKLCH | oklch(38.9% 0.073 59) |
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 #613A18 | 9.87:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #613A18 | 2.12:1 | Fails | Lc 11.3 | Not readable |
| #613A18 text on white | 9.87:1 | AAA | Lc 92.7 | Preferred for body text |
| #613A18 text on black | 2.12:1 | Fails | Lc -9.8 | 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
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E8E0
oklch(93.7% 0.015 61.3)
-
Step 200
200
#E9D5C6
oklch(88.5% 0.03 59.3)
-
Step 300
300
#DCB99E
oklch(80.9% 0.055 59.5)
-
Step 400
400
#CA9369
oklch(70.7% 0.088 58.1)
-
Step 500
500
#BB773E
oklch(63% 0.112 58.6)
-
Step 600
600
#A65F19
oklch(55.6% 0.121 59.1)
-
Step 700
700
#8E4E08
oklch(49.1% 0.113 59.2)
-
Step 800
800
#74400D
oklch(42.7% 0.094 58.7)
-
Step 900
900 (this color)
#613A18
oklch(38.9% 0.073 59)
-
Step 950
950
#37200E
oklch(26.9% 0.046 57.2)
#613A18 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) | #463E14 | 0.053 |
| Deuteranopia (no green cones) | #4F4718 | 0.049 |
| Tritanopia (no blue cones) | #6A3233 | 0.051 |
| Achromatopsia (no color) | #434343 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613A18
#613A18
oklch(38.9% 0.073 59)
- #174967
#174967
oklch(38.7% 0.073 239.3)
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 #613A18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.038
- Chestnut #742802 ΔE 0.051
- Purple Brown #673A3F ΔE 0.056
- Green Brown #544E03 ΔE 0.069
- Charcoal Grey #3C4142 ΔE 0.081
- Olive Brown #645403 ΔE 0.081
- Reddy Brown #6E1005 ΔE 0.083
- Rust Brown #8B3103 ΔE 0.084
Use #613A18 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.