#613B1F
Closest named color: Mud Brown (#60460F). oklch(39.2% 0.068 55.6), rgb(97, 59, 31).
Aa
White text reads best on this color (9.75:1).
About this color
#613B1F is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.068 and its hue 56°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.039 away. White text reads best on it, at 9.75:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #613B1F |
| RGB | rgb(97, 59, 31) |
| HSL | hsl(25, 52%, 25%) |
| OKLCH | oklch(39.2% 0.068 55.6) |
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 #613B1F | 9.75:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #613B1F | 2.15:1 | Fails | Lc 11.5 | Not readable |
| #613B1F text on white | 9.75:1 | AAA | Lc 92.4 | Preferred for body text |
| #613B1F text on black | 2.15:1 | Fails | Lc -10.0 | 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
#F2E8E1
oklch(93.7% 0.014 57.6)
-
Step 200
200
#E9D5C8
oklch(88.6% 0.028 55.3)
-
Step 300
300
#DBB9A2
oklch(80.9% 0.05 56)
-
Step 400
400
#C8936F
oklch(70.6% 0.081 55.2)
-
Step 500
500
#B97848
oklch(63.1% 0.104 56)
-
Step 600
600
#A55F29
oklch(55.6% 0.113 55)
-
Step 700
700
#8D4E1B
oklch(49% 0.105 55.3)
-
Step 800
800
#734119
oklch(42.8% 0.087 55.9)
-
Step 900
900 (this color)
#613B1F
oklch(39.2% 0.068 55.6)
-
Step 950
950
#362111
oklch(27% 0.042 57.1)
#613B1F 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) | #463F1C | 0.053 |
| Deuteranopia (no green cones) | #4F471F | 0.047 |
| Tritanopia (no blue cones) | #6A3334 | 0.046 |
| Achromatopsia (no color) | #444444 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613B1F
#613B1F
oklch(39.2% 0.068 55.6)
- #1A4B65
#1A4B65
oklch(39.2% 0.068 235.6)
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 #613B1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.039
- Purple Brown #673A3F ΔE 0.050
- Chestnut #742802 ΔE 0.053
- Green Brown #544E03 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.077
- Brownish Purple #76424E ΔE 0.081
- Olive Brown #645403 ΔE 0.082
- Milk Chocolate #7F4E1E ΔE 0.083
Use #613B1F 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.