#63552C
Closest named color: Olive Brown (#645403). oklch(45.4% 0.061 91), rgb(99, 85, 44).
Aa
White text reads best on this color (7.32:1).
About this color
#63552C is a medium-dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.061 and its hue 91°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.031 away. White text reads best on it, at 7.32:1.
| Hue family | Browns |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #63552C |
| RGB | rgb(99, 85, 44) |
| HSL | hsl(45, 38%, 28%) |
| OKLCH | oklch(45.4% 0.061 91) |
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 #63552C | 7.32:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #63552C | 2.86:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #63552C text on white | 7.32:1 | AAA | Lc 85.4 | Fine for body text |
| #63552C text on black | 2.86:1 | Fails | Lc -16.6 | 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 800.
-
Step 50
50
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE2
oklch(93.6% 0.011 95.2)
-
Step 200
200
#DED9CB
oklch(88.5% 0.02 90.6)
-
Step 300
300
#C9C0A7
oklch(80.8% 0.036 90.5)
-
Step 400
400
#AEA078
oklch(70.8% 0.057 91)
-
Step 500
500
#9A8854
oklch(63.1% 0.074 91)
-
Step 600
600
#857239
oklch(55.7% 0.08 91.2)
-
Step 700
700
#705F2B
oklch(49.1% 0.074 91.4)
-
Step 800
800 (this color)
#63552C
oklch(45.4% 0.061 91)
-
Step 900
900
#4B4123
oklch(37.8% 0.048 91.5)
-
Step 950
950
#2C2615
oklch(27% 0.03 90.8)
#63552C 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) | #5D5428 | 0.012 |
| Deuteranopia (no green cones) | #61582E | 0.009 |
| Tritanopia (no blue cones) | #6A4F4B | 0.055 |
| Achromatopsia (no color) | #565656 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63552C
#63552C
oklch(45.4% 0.061 91)
- #495479
#495479
oklch(45.2% 0.062 271.1)
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 #63552C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.031
- Mud #735C12 ΔE 0.044
- Mud Brown #60460F ΔE 0.046
- Green Brown #544E03 ΔE 0.048
- Greeny Brown #696006 ΔE 0.050
- Medium Brown #7F5112 ΔE 0.051
- Milk Chocolate #7F4E1E ΔE 0.051
- Army Green #4B5D16 ΔE 0.055
Use #63552C 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.