#613E21
Closest named color: Mud Brown (#60460F). oklch(39.8% 0.065 59), rgb(97, 62, 33).
Aa
White text reads best on this color (9.46:1).
About this color
#613E21 is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.065 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.033 away. White text reads best on it, at 9.46:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.21:1 |
| White text | 9.46:1 |
Values
| HEX | #613E21 |
| RGB | rgb(97, 62, 33) |
| HSL | hsl(27, 49%, 25%) |
| OKLCH | oklch(39.8% 0.065 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 #613E21 | 9.46:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #613E21 | 2.21:1 | Fails | Lc 12.2 | Not readable |
| #613E21 text on white | 9.46:1 | AAA | Lc 91.7 | Preferred for body text |
| #613E21 text on black | 2.21:1 | Fails | Lc -10.7 | 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
#F1E8E1
oklch(93.6% 0.014 60.6)
-
Step 200
200
#E7D5C8
oklch(88.4% 0.027 58.3)
-
Step 300
300
#D9BAA2
oklch(80.9% 0.048 59.8)
-
Step 400
400
#C6956F
oklch(70.7% 0.079 58.8)
-
Step 500
500
#B67A48
oklch(63.1% 0.1 59.3)
-
Step 600
600
#A16229
oklch(55.6% 0.108 59.4)
-
Step 700
700
#8A511C
oklch(49.2% 0.101 59.2)
-
Step 800
800
#70421A
oklch(42.6% 0.083 58.4)
-
Step 900
900 (this color)
#613E21
oklch(39.8% 0.065 59)
-
Step 950
950
#352111
oklch(26.9% 0.041 58.5)
#613E21 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) | #49411E | 0.046 |
| Deuteranopia (no green cones) | #514921 | 0.042 |
| Tritanopia (no blue cones) | #6A3737 | 0.046 |
| Achromatopsia (no color) | #464646 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613E21
#613E21
oklch(39.8% 0.065 59)
- #214C66
#214C66
oklch(39.8% 0.065 238)
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 #613E21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.033
- Purple Brown #673A3F ΔE 0.051
- Chestnut #742802 ΔE 0.058
- Green Brown #544E03 ΔE 0.065
- Olive Brown #645403 ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.076
- Milk Chocolate #7F4E1E ΔE 0.077
- Brownish Purple #76424E ΔE 0.078
Use #613E21 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.