#63533F
Closest named color: Mud Brown (#60460F). oklch(45.3% 0.037 72.9), rgb(99, 83, 63).
Aa
White text reads best on this color (7.39:1).
About this color
#63533F is a medium-dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.037 and its hue 73°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.057 away. White text reads best on it, at 7.39:1.
| Hue family | Browns |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.83:1 |
| White text | 7.39:1 |
Values
| HEX | #63533F |
| RGB | rgb(99, 83, 63) |
| HSL | hsl(33, 22%, 32%) |
| OKLCH | oklch(45.3% 0.037 72.9) |
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 #63533F | 7.39:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #63533F | 2.83:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #63533F text on white | 7.39:1 | AAA | Lc 85.7 | Fine for body text |
| #63533F text on black | 2.83:1 | Fails | Lc -16.4 | 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 800.
-
Step 50
50
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#ECE9E5
oklch(93.5% 0.006 75.4)
-
Step 200
200
#DED8D1
oklch(88.5% 0.012 71.9)
-
Step 300
300
#CABFB2
oklch(81% 0.022 72.1)
-
Step 400
400
#AE9E89
oklch(70.7% 0.035 74.6)
-
Step 500
500
#9A866C
oklch(63.1% 0.044 74.1)
-
Step 600
600
#856F54
oklch(55.6% 0.048 72.3)
-
Step 700
700
#715D44
oklch(49.2% 0.046 72.7)
-
Step 800
800 (this color)
#63533F
oklch(45.3% 0.037 72.9)
-
Step 900
900
#4B3F31
oklch(37.6% 0.028 71.1)
-
Step 950
950
#2C251D
oklch(27% 0.018 70.7)
#63533F 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) | #59533E | 0.017 |
| Deuteranopia (no green cones) | #5D573F | 0.015 |
| Tritanopia (no blue cones) | #694F4E | 0.032 |
| Achromatopsia (no color) | #565656 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63533F
#63533F
oklch(45.3% 0.037 72.9)
- #47586B
#47586B
oklch(45.4% 0.038 251.5)
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 #63533F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.057
- Milk Chocolate #7F4E1E ΔE 0.057
- Olive Brown #645403 ΔE 0.059
- Medium Brown #7F5112 ΔE 0.063
- Mud #735C12 ΔE 0.066
- Green Brown #544E03 ΔE 0.068
- Brownish Purple #76424E ΔE 0.069
- Purple Brown #673A3F ΔE 0.073
Use #63533F 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.