#613B2B
Closest named color: Purple Brown (#673A3F). oklch(39.4% 0.06 43.5), rgb(97, 59, 43).
Aa
White text reads best on this color (9.68:1).
About this color
#613B2B is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.060 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.035 away. White text reads best on it, at 9.68:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.060) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.16:1 |
| White text | 9.68:1 |
Values
| HEX | #613B2B |
| RGB | rgb(97, 59, 43) |
| HSL | hsl(18, 39%, 27%) |
| OKLCH | oklch(39.4% 0.06 43.5) |
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 #613B2B | 9.68:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #613B2B | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #613B2B text on white | 9.68:1 | AAA | Lc 92.3 | Preferred for body text |
| #613B2B 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E3
oklch(93.6% 0.013 41.2)
-
Step 200
200
#E8D4CC
oklch(88.4% 0.025 43.2)
-
Step 300
300
#DBB8AA
oklch(80.9% 0.045 43)
-
Step 400
400
#C8927C
oklch(70.7% 0.073 43.1)
-
Step 500
500
#B8775B
oklch(63.1% 0.091 44)
-
Step 600
600
#A45F41
oklch(55.7% 0.1 43.8)
-
Step 700
700
#8C4E33
oklch(49.2% 0.093 43.7)
-
Step 800
800
#72402B
oklch(42.8% 0.077 43.1)
-
Step 900
900 (this color)
#613B2B
oklch(39.4% 0.06 43.5)
-
Step 950
950
#362017
oklch(26.9% 0.038 43)
#613B2B 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) | #453F2A | 0.053 |
| Deuteranopia (no green cones) | #4E482B | 0.050 |
| Tritanopia (no blue cones) | #693437 | 0.034 |
| Achromatopsia (no color) | #444444 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613B2B
#613B2B
oklch(39.4% 0.06 43.5)
- #1A4D5E
#1A4D5E
oklch(39.4% 0.06 223.7)
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 #613B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.035
- Mud Brown #60460F ΔE 0.051
- Chestnut #742802 ΔE 0.056
- Brownish Purple #76424E ΔE 0.069
- Charcoal Grey #3C4142 ΔE 0.070
- Green Brown #544E03 ΔE 0.081
- Red Brown #8B2E16 ΔE 0.084
- Reddy Brown #6E1005 ΔE 0.085
Use #613B2B 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.