#6C403D
Closest named color: Purple Brown (#673A3F). oklch(42.3% 0.062 24.2), rgb(108, 64, 61).
Aa
White text reads best on this color (8.61:1).
About this color
#6C403D is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.062 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.022 away. White text reads best on it, at 8.61:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #6C403D |
| RGB | rgb(108, 64, 61) |
| HSL | hsl(4, 28%, 33%) |
| OKLCH | oklch(42.3% 0.062 24.2) |
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 #6C403D | 8.61:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #6C403D | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #6C403D text on white | 8.61:1 | AAA | Lc 89.4 | Fine for body text |
| #6C403D text on black | 2.43:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E6
oklch(93.6% 0.011 24.3)
-
Step 200
200
#E6D4D3
oklch(88.4% 0.02 21.4)
-
Step 300
300
#D7B8B5
oklch(80.9% 0.036 24.5)
-
Step 400
400
#C2938F
oklch(70.7% 0.057 24.2)
-
Step 500
500
#B27873
oklch(63.1% 0.074 24.8)
-
Step 600
600
#9D605C
oklch(55.6% 0.08 24)
-
Step 700
700
#864F4C
oklch(49% 0.075 23.5)
-
Step 800
800 (this color)
#6C403D
oklch(42.3% 0.062 24.2)
-
Step 900
900
#593735
oklch(37.7% 0.049 23.3)
-
Step 950
950
#34211F
oklch(27.1% 0.03 25.9)
#6C403D 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) | #49463D | 0.065 |
| Deuteranopia (no green cones) | #544F3C | 0.060 |
| Tritanopia (no blue cones) | #743A3F | 0.022 |
| Achromatopsia (no color) | #4C4C4C | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C403D
#6C403D
oklch(42.3% 0.062 24.2)
- #19585E
#19585E
oklch(42.4% 0.063 204.2)
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 #6C403D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.022
- Brownish Purple #76424E ΔE 0.033
- Mud Brown #60460F ΔE 0.069
- Chestnut #742802 ΔE 0.070
- Red Brown #8B2E16 ΔE 0.073
- Milk Chocolate #7F4E1E ΔE 0.074
- Rust Brown #8B3103 ΔE 0.077
- Saddle Brown #8B4513 ΔE 0.079
Use #6C403D 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.