#63583A
Closest named color: Olive Brown (#645403). oklch(46.3% 0.047 90.2), rgb(99, 88, 58).
Aa
White text reads best on this color (7.02:1).
About this color
#63583A is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.047 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.047 away. White text reads best on it, at 7.02:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.98:1 |
| White text | 7.02:1 |
Values
| HEX | #63583A |
| RGB | rgb(99, 88, 58) |
| HSL | hsl(44, 26%, 31%) |
| OKLCH | oklch(46.3% 0.047 90.2) |
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 #63583A | 7.02:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #63583A | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #63583A text on white | 7.02:1 | AAA | Lc 84.3 | Fine for body text |
| #63583A text on black | 2.98:1 | Fails | Lc -17.6 | 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
#DCD9D0
oklch(88.5% 0.013 91.5)
-
Step 300
300
#C6C0B0
oklch(80.8% 0.023 89.8)
-
Step 400
400
#A9A087
oklch(70.7% 0.037 90.6)
-
Step 500
500
#948969
oklch(63.1% 0.047 91.3)
-
Step 600
600
#7F7251
oklch(55.5% 0.05 89)
-
Step 700
700 (this color)
#63583A
oklch(46.3% 0.047 90.2)
-
Step 800
800
#574E36
oklch(42.6% 0.039 89.9)
-
Step 900
900
#48412F
oklch(37.7% 0.03 89.3)
-
Step 950
950
#2A261C
oklch(27% 0.019 88.8)
#63583A 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) | #5E5738 | 0.010 |
| Deuteranopia (no green cones) | #615A3B | 0.006 |
| Tritanopia (no blue cones) | #695350 | 0.043 |
| Achromatopsia (no color) | #595959 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63583A
#63583A
oklch(46.3% 0.047 90.2)
- #4F5874
#4F5874
oklch(46.4% 0.047 270.7)
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 #63583A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.047
- Mud #735C12 ΔE 0.050
- Milk Chocolate #7F4E1E ΔE 0.055
- Medium Brown #7F5112 ΔE 0.056
- Greeny Brown #696006 ΔE 0.058
- Mud Brown #60460F ΔE 0.060
- Camo Green #526525 ΔE 0.061
- Dark Moss Green #606C38 ΔE 0.062
Use #63583A 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.