#633423
Closest named color: Purple Brown (#673A3F). oklch(38.1% 0.073 40.4), rgb(99, 52, 35).
Aa
White text reads best on this color (10.26:1).
About this color
#633423 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.073 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.041 away. White text reads best on it, at 10.26:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.073) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.04:1 |
| White text | 10.26:1 |
Values
| HEX | #633423 |
| RGB | rgb(99, 52, 35) |
| HSL | hsl(16, 48%, 26%) |
| OKLCH | oklch(38.1% 0.073 40.4) |
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 #633423 | 10.26:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #633423 | 2.04:1 | Fails | Lc 10.4 | Not readable |
| #633423 text on white | 10.26:1 | AAA | Lc 93.5 | Preferred for body text |
| #633423 text on black | 2.04:1 | Fails | Lc -9.0 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E7E2
oklch(93.7% 0.016 42.4)
-
Step 200
200
#ECD3CA
oklch(88.5% 0.031 40.9)
-
Step 300
300
#E1B5A6
oklch(80.8% 0.055 39.7)
-
Step 400
400
#D08E77
oklch(70.7% 0.087 40)
-
Step 500
500
#C27153
oklch(63.2% 0.111 40.9)
-
Step 600
600
#AE5737
oklch(55.6% 0.123 40.4)
-
Step 700
700
#95472A
oklch(49.2% 0.113 40.4)
-
Step 800
800
#793B24
oklch(42.8% 0.094 40.5)
-
Step 900
900 (this color)
#633423
oklch(38.1% 0.073 40.4)
-
Step 950
950
#391E14
oklch(26.9% 0.046 40.9)
#633423 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) | #403A21 | 0.069 |
| Deuteranopia (no green cones) | #4C4522 | 0.064 |
| Tritanopia (no blue cones) | #6C2B30 | 0.038 |
| Achromatopsia (no color) | #414141 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633423
#633423
oklch(38.1% 0.073 40.4)
- #004B5C
#004B5C
oklch(38.2% 0.069 219.6)
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 #633423, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.041
- Chestnut #742802 ΔE 0.043
- Mud Brown #60460F ΔE 0.061
- Reddy Brown #6E1005 ΔE 0.067
- Brownish Purple #76424E ΔE 0.078
- Blood #770001 ΔE 0.080
- Charcoal Grey #3C4142 ΔE 0.081
- Red Brown #8B2E16 ΔE 0.081
Use #633423 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.