#55403A
Closest named color: Purple Brown (#673A3F). oklch(39.2% 0.031 36.5), rgb(85, 64, 58).
Aa
White text reads best on this color (9.62:1).
About this color
#55403A is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.031 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 9.62:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.18:1 |
| White text | 9.62:1 |
Values
| HEX | #55403A |
| RGB | rgb(85, 64, 58) |
| HSL | hsl(13, 19%, 28%) |
| OKLCH | oklch(39.2% 0.031 36.5) |
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 #55403A | 9.62:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #55403A | 2.18:1 | Fails | Lc 11.7 | Not readable |
| #55403A text on white | 9.62:1 | AAA | Lc 92.3 | Preferred for body text |
| #55403A text on black | 2.18:1 | Fails | Lc -10.1 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EEE8E7
oklch(93.5% 0.007 28.8)
-
Step 200
200
#E1D6D3
oklch(88.4% 0.013 35.7)
-
Step 300
300
#CFBCB6
oklch(80.9% 0.023 38.3)
-
Step 400
400
#B69991
oklch(70.7% 0.037 35.9)
-
Step 500
500
#A48075
oklch(63.1% 0.048 37.7)
-
Step 600
600
#8F695E
oklch(55.6% 0.052 36.8)
-
Step 700
700
#79574D
oklch(49% 0.048 37)
-
Step 800
800
#634740
oklch(42.6% 0.04 34.5)
-
Step 900
900 (this color)
#55403A
oklch(39.2% 0.031 36.5)
-
Step 950
950
#2F2320
oklch(26.9% 0.019 34.4)
#55403A 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) | #45423A | 0.029 |
| Deuteranopia (no green cones) | #4A463A | 0.026 |
| Tritanopia (no blue cones) | #5A3D3E | 0.016 |
| Achromatopsia (no color) | #454545 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55403A
#55403A
oklch(39.2% 0.031 36.5)
- #324A51
#324A51
oklch(39.2% 0.032 217.9)
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 #55403A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.044
- Mud Brown #60460F ΔE 0.062
- Onyx #343A40 ΔE 0.064
- Dark Slate Gray #2F4F4F ΔE 0.069
- Brownish Purple #76424E ΔE 0.072
- Charcoal #264653 ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.080
Use #55403A 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.