#613F1B
Closest named color: Mud Brown (#60460F). oklch(39.9% 0.069 64.9), rgb(97, 63, 27).
Aa
White text reads best on this color (9.39:1).
About this color
#613F1B is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 65°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.026 away. White text reads best on it, at 9.39:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #613F1B |
| RGB | rgb(97, 63, 27) |
| HSL | hsl(31, 56%, 24%) |
| OKLCH | oklch(39.9% 0.069 64.9) |
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 #613F1B | 9.39:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #613F1B | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #613F1B text on white | 9.39:1 | AAA | Lc 91.5 | Preferred for body text |
| #613F1B text on black | 2.23:1 | Fails | Lc -10.8 | 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
#F9F5F1
oklch(97.2% 0.007 67.7)
-
Step 100
100
#F1E8E0
oklch(93.6% 0.015 64.3)
-
Step 200
200
#E7D6C6
oklch(88.6% 0.029 65.7)
-
Step 300
300
#D9BA9E
oklch(80.9% 0.052 64.1)
-
Step 400
400
#C59668
oklch(70.7% 0.084 65.2)
-
Step 500
500
#B57B3E
oklch(63% 0.106 65.1)
-
Step 600
600
#A16318
oklch(55.6% 0.116 64.9)
-
Step 700
700
#895207
oklch(49.1% 0.107 65.5)
-
Step 800
800
#70430D
oklch(42.7% 0.089 64.6)
-
Step 900
900 (this color)
#613F1B
oklch(39.9% 0.069 64.9)
-
Step 950
950
#35220D
oklch(27.1% 0.044 66.7)
#613F1B 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) | #4A4217 | 0.045 |
| Deuteranopia (no green cones) | #52491C | 0.039 |
| Tritanopia (no blue cones) | #6A3737 | 0.053 |
| Achromatopsia (no color) | #464646 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613F1B
#613F1B
oklch(39.9% 0.069 64.9)
- #244B6A
#244B6A
oklch(39.9% 0.069 244.8)
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 #613F1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.026
- Green Brown #544E03 ΔE 0.058
- Purple Brown #673A3F ΔE 0.059
- Chestnut #742802 ΔE 0.060
- Olive Brown #645403 ΔE 0.069
- Milk Chocolate #7F4E1E ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.080
- Medium Brown #7F5112 ΔE 0.081
Use #613F1B 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.