#613B04
Closest named color: Mud Brown (#60460F). oklch(38.9% 0.083 68.4), rgb(97, 59, 4).
Aa
White text reads best on this color (9.83:1).
About this color
#613B04 is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.083 and its hue 68°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.030 away. White text reads best on it, at 9.83:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.13:1 |
| White text | 9.83:1 |
Values
| HEX | #613B04 |
| RGB | rgb(97, 59, 4) |
| HSL | hsl(35, 92%, 20%) |
| OKLCH | oklch(38.9% 0.083 68.4) |
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 #613B04 | 9.83:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #613B04 | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #613B04 text on white | 9.83:1 | AAA | Lc 92.5 | Preferred for body text |
| #613B04 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
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F2E8DD
oklch(93.6% 0.018 70.2)
-
Step 200
200
#E9D6C1
oklch(88.6% 0.035 70.1)
-
Step 300
300
#DCBA96
oklch(81% 0.062 68.4)
-
Step 400
400
#C9955A
oklch(70.7% 0.099 68.6)
-
Step 500
500
#BB7921
oklch(63.1% 0.127 68.2)
-
Step 600
600
#A16300
oklch(55.5% 0.122 67.9)
-
Step 700
700
#885300
oklch(49.1% 0.108 68.1)
-
Step 800
800
#704400
oklch(42.8% 0.094 68.6)
-
Step 900
900 (this color)
#613B04
oklch(38.9% 0.083 68.4)
-
Step 950
950
#372105
oklch(27% 0.053 68.7)
#613B04 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) | #483E00 | 0.049 |
| Deuteranopia (no green cones) | #514705 | 0.044 |
| Tritanopia (no blue cones) | #6B3231 | 0.064 |
| Achromatopsia (no color) | #434343 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613B04
#613B04
oklch(38.9% 0.083 68.4)
- #1B476F
#1B476F
oklch(38.8% 0.084 249)
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 #613B04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.030
- Chestnut #742802 ΔE 0.056
- Green Brown #544E03 ΔE 0.059
- Purple Brown #673A3F ΔE 0.072
- Olive Brown #645403 ΔE 0.073
- Dark Olive #373E02 ΔE 0.079
- Milk Chocolate #7F4E1E ΔE 0.083
- Rust Brown #8B3103 ΔE 0.086
Use #613B04 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.