#63170E
Closest named color: Reddy Brown (#6E1005). oklch(33.4% 0.11 30.4), rgb(99, 23, 14).
Aa
White text reads best on this color (12.65:1).
About this color
#63170E is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.110 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.024 away. White text reads best on it, at 12.65:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.65:1 |
| White text | 12.65:1 |
Values
| HEX | #63170E |
| RGB | rgb(99, 23, 14) |
| HSL | hsl(6, 75%, 22%) |
| OKLCH | oklch(33.4% 0.11 30.4) |
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 #63170E | 12.65:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #63170E | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #63170E text on white | 12.65:1 | AAA | Lc 97.6 | Preferred for body text |
| #63170E text on black | 1.65:1 | Fails | Lc 0.0 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F6CFC7
oklch(88.6% 0.046 31.6)
-
Step 300
300
#F1ADA1
oklch(80.9% 0.082 30.2)
-
Step 400
400
#E77F6E
oklch(70.8% 0.132 30.4)
-
Step 500
500
#DD5946
oklch(63.2% 0.169 30.6)
-
Step 600
600
#C83827
oklch(55.6% 0.184 30.4)
-
Step 700
700
#AC281A
oklch(49% 0.171 30.2)
-
Step 800
800
#8C2418
oklch(42.7% 0.141 30.3)
-
Step 900
900 (this color)
#63170E
oklch(33.4% 0.11 30.4)
-
Step 950
950
#421610
oklch(26.9% 0.07 30.1)
#63170E 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) | #2E280C | 0.116 |
| Deuteranopia (no green cones) | #41390A | 0.106 |
| Tritanopia (no blue cones) | #6E0016 | 0.034 |
| Achromatopsia (no color) | #333333 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63170E
#63170E
oklch(33.4% 0.11 30.4)
- #003E47
#003E47
oklch(33.4% 0.058 210.8)
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 #63170E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.024
- Claret #680018 ΔE 0.033
- Blood #770001 ΔE 0.044
- Burgundy #610023 ΔE 0.049
- Chestnut #742802 ΔE 0.057
- Wine Red #7B0323 ΔE 0.061
- Maroon #800000 ΔE 0.062
- Bordeaux #7B002C ΔE 0.069
Use #63170E 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.