#931F04
Closest named color: Brick Red (#8F1402). oklch(43.4% 0.155 33.3), rgb(147, 31, 4).
Aa
White text reads best on this color (8.61:1).
About this color
#931F04 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.155 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.017 away. White text reads best on it, at 8.61:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #931F04 |
| RGB | rgb(147, 31, 4) |
| HSL | hsl(11, 95%, 30%) |
| OKLCH | oklch(43.4% 0.155 33.3) |
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 #931F04 | 8.61:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #931F04 | 2.43:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #931F04 text on white | 8.61:1 | AAA | Lc 88.1 | Fine for body text |
| #931F04 text on black | 2.43:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CEC4
oklch(88.6% 0.051 33.3)
-
Step 300
300
#F5AB9B
oklch(80.8% 0.091 32.6)
-
Step 400
400
#ED7B63
oklch(70.7% 0.146 33.1)
-
Step 500
500
#E35335
oklch(63.1% 0.185 33.5)
-
Step 600
600
#CF2D04
oklch(55.6% 0.202 33.2)
-
Step 700
700
#AF2300
oklch(49% 0.18 33.3)
-
Step 800
800 (this color)
#931F04
oklch(43.4% 0.155 33.3)
-
Step 900
900
#74200F
oklch(37.7% 0.121 33.2)
-
Step 950
950
#45140B
oklch(27% 0.078 32.5)
#931F04 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) | #443B00 | 0.165 |
| Deuteranopia (no green cones) | #615500 | 0.146 |
| Tritanopia (no blue cones) | #A3001B | 0.042 |
| Achromatopsia (no color) | #4C4C4C | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #931F04
#931F04
oklch(43.4% 0.155 33.3)
- #005B6A
#005B6A
oklch(43.3% 0.076 213.9)
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 #931F04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.017
- Brown Red #922B05 ΔE 0.018
- Deep Red #9A0200 ΔE 0.024
- Red Brown #8B2E16 ΔE 0.024
- Blood Red #980002 ΔE 0.025
- Burnt Red #9F2305 ΔE 0.028
- Rust Brown #8B3103 ΔE 0.031
- Auburn #9B2226 ΔE 0.032
Use #931F04 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.