#55403D
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.03 27.8), rgb(85, 64, 61).
Aa
White text reads best on this color (9.60:1).
About this color
#55403D is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Purple Brown (#673A3F), ΔE 0.038 away. White text reads best on it, at 9.60:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #55403D |
| RGB | rgb(85, 64, 61) |
| HSL | hsl(7, 16%, 29%) |
| OKLCH | oklch(39.3% 0.03 27.8) |
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 #55403D | 9.60:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #55403D | 2.18:1 | Fails | Lc 11.7 | Not readable |
| #55403D text on white | 9.60:1 | AAA | Lc 92.2 | Preferred for body text |
| #55403D text on black | 2.18:1 | Fails | Lc -10.2 | 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
#E1D6D4
oklch(88.4% 0.012 29.9)
-
Step 300
300
#CFBBB9
oklch(80.8% 0.023 24.5)
-
Step 400
400
#B69994
oklch(70.8% 0.036 29.5)
-
Step 500
500
#A47F7A
oklch(63.1% 0.047 27.3)
-
Step 600
600
#8E6863
oklch(55.5% 0.05 27.3)
-
Step 700
700
#795752
oklch(49.1% 0.046 28.3)
-
Step 800
800
#634743
oklch(42.7% 0.039 28)
-
Step 900
900 (this color)
#55403D
oklch(39.3% 0.03 27.8)
-
Step 950
950
#2F2321
oklch(27% 0.019 29.3)
#55403D 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) | #44433D | 0.031 |
| Deuteranopia (no green cones) | #49473D | 0.029 |
| Tritanopia (no blue cones) | #5A3E3F | 0.012 |
| Achromatopsia (no color) | #454545 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55403D
#55403D
oklch(39.3% 0.03 27.8)
- #334B4E
#334B4E
oklch(39.4% 0.03 205.8)
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 #55403D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.043
- Onyx #343A40 ΔE 0.063
- Mud Brown #60460F ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.068
- Brownish Purple #76424E ΔE 0.070
- Charcoal #264653 ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.078
Use #55403D 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.