#613C10
Closest named color: Mud Brown (#60460F). oklch(39.2% 0.077 66), rgb(97, 60, 16).
Aa
White text reads best on this color (9.71:1).
About this color
#613C10 is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.077 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.029 away. White text reads best on it, at 9.71:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.16:1 |
| White text | 9.71:1 |
Values
| HEX | #613C10 |
| RGB | rgb(97, 60, 16) |
| HSL | hsl(33, 72%, 22%) |
| OKLCH | oklch(39.2% 0.077 66) |
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 #613C10 | 9.71:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #613C10 | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #613C10 text on white | 9.71:1 | AAA | Lc 92.3 | Preferred for body text |
| #613C10 text on black | 2.16:1 | Fails | Lc -10.1 | 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
#E8D5C3
oklch(88.4% 0.032 65.9)
-
Step 300
300
#DBBA9A
oklch(80.9% 0.058 66)
-
Step 400
400
#C89561
oklch(70.7% 0.092 65.9)
-
Step 500
500
#B97930
oklch(63% 0.118 65.8)
-
Step 600
600
#A36200
oklch(55.6% 0.124 66.2)
-
Step 700
700
#8A5200
oklch(49.2% 0.11 66)
-
Step 800
800
#714200
oklch(42.6% 0.095 65.8)
-
Step 900
900 (this color)
#613C10
oklch(39.2% 0.077 66)
-
Step 950
950
#362109
oklch(26.9% 0.049 66.5)
#613C10 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) | #483F09 | 0.050 |
| Deuteranopia (no green cones) | #514811 | 0.044 |
| Tritanopia (no blue cones) | #6B3333 | 0.060 |
| Achromatopsia (no color) | #444444 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C10
#613C10
oklch(39.2% 0.077 66)
- #1D496C
#1D496C
oklch(39.2% 0.077 245.6)
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 #613C10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.029
- Chestnut #742802 ΔE 0.056
- Green Brown #544E03 ΔE 0.060
- Purple Brown #673A3F ΔE 0.065
- Olive Brown #645403 ΔE 0.073
- Milk Chocolate #7F4E1E ΔE 0.081
- Dark Olive #373E02 ΔE 0.081
- Rust Brown #8B3103 ΔE 0.084
Use #613C10 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.