#63583D
Closest named color: Olive Brown (#645403). oklch(46.4% 0.043 88.4), rgb(99, 88, 61).
Aa
White text reads best on this color (7.01:1).
About this color
#63583D is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.043 and its hue 88°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.051 away. White text reads best on it, at 7.01:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #63583D |
| RGB | rgb(99, 88, 61) |
| HSL | hsl(43, 24%, 31%) |
| OKLCH | oklch(46.4% 0.043 88.4) |
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 #63583D | 7.01:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #63583D | 2.99:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #63583D text on white | 7.01:1 | AAA | Lc 84.3 | Fine for body text |
| #63583D text on black | 2.99:1 | Fails | Lc -17.7 | Dividers and decoration only |
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 700.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE5
oklch(93.6% 0.007 97.4)
-
Step 200
200
#DCD9D1
oklch(88.5% 0.011 89.7)
-
Step 300
300
#C6C0B2
oklch(80.9% 0.02 87.5)
-
Step 400
400
#A9A089
oklch(70.7% 0.034 89.2)
-
Step 500
500
#94886C
oklch(63% 0.042 87.5)
-
Step 600
600
#7E7254
oklch(55.5% 0.046 88.8)
-
Step 700
700 (this color)
#63583D
oklch(46.4% 0.043 88.4)
-
Step 800
800
#574E38
oklch(42.7% 0.036 88.3)
-
Step 900
900
#484131
oklch(37.8% 0.028 87.1)
-
Step 950
950
#2A261D
oklch(27% 0.017 86.9)
#63583D 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) | #5E573B | 0.010 |
| Deuteranopia (no green cones) | #615A3E | 0.006 |
| Tritanopia (no blue cones) | #695451 | 0.038 |
| Achromatopsia (no color) | #595959 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63583D
#63583D
oklch(46.4% 0.043 88.4)
- #4F5872
#4F5872
oklch(46.3% 0.044 269.8)
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 #63583D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.051
- Mud #735C12 ΔE 0.053
- Milk Chocolate #7F4E1E ΔE 0.056
- Medium Brown #7F5112 ΔE 0.058
- Greeny Brown #696006 ΔE 0.061
- Mud Brown #60460F ΔE 0.062
- Camo Green #526525 ΔE 0.064
- Dark Moss Green #606C38 ΔE 0.064
Use #63583D 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.