#613F19
Closest named color: Mud Brown (#60460F). oklch(39.9% 0.071 66.1), rgb(97, 63, 25).
Aa
White text reads best on this color (9.40:1).
About this color
#613F19 is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.024 away. White text reads best on it, at 9.40:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #613F19 |
| RGB | rgb(97, 63, 25) |
| HSL | hsl(32, 59%, 24%) |
| OKLCH | oklch(39.9% 0.071 66.1) |
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 #613F19 | 9.40:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #613F19 | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #613F19 text on white | 9.40:1 | AAA | Lc 91.6 | Preferred for body text |
| #613F19 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
#F1E8DF
oklch(93.6% 0.016 67.6)
-
Step 200
200
#E7D6C5
oklch(88.5% 0.03 67.4)
-
Step 300
300
#D9BA9D
oklch(80.8% 0.053 65.1)
-
Step 400
400
#C59667
oklch(70.7% 0.084 65.7)
-
Step 500
500
#B67B3B
oklch(63.1% 0.109 65.7)
-
Step 600
600
#A16311
oklch(55.6% 0.118 66.1)
-
Step 700
700
#8A5200
oklch(49.2% 0.11 66)
-
Step 800
800
#704308
oklch(42.7% 0.091 65.8)
-
Step 900
900 (this color)
#613F19
oklch(39.9% 0.071 66.1)
-
Step 950
950
#35220C
oklch(27% 0.045 67.8)
#613F19 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) | #4A4215 | 0.045 |
| Deuteranopia (no green cones) | #52491A | 0.039 |
| Tritanopia (no blue cones) | #6A3737 | 0.055 |
| Achromatopsia (no color) | #464646 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613F19
#613F19
oklch(39.9% 0.071 66.1)
- #244B6B
#244B6B
oklch(40% 0.07 245.6)
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 #613F19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.024
- Green Brown #544E03 ΔE 0.056
- Chestnut #742802 ΔE 0.060
- Purple Brown #673A3F ΔE 0.061
- Olive Brown #645403 ΔE 0.068
- Milk Chocolate #7F4E1E ΔE 0.075
- Medium Brown #7F5112 ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.081
Use #613F19 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.