#90312D
Closest named color: Red Brown (#8B2E16). oklch(45.2% 0.129 26.1), rgb(144, 49, 45).
Aa
White text reads best on this color (7.88:1).
About this color
#90312D is a medium-dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.129 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.026 away. White text reads best on it, at 7.88:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #90312D |
| RGB | rgb(144, 49, 45) |
| HSL | hsl(2, 52%, 37%) |
| OKLCH | oklch(45.2% 0.129 26.1) |
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 #90312D | 7.88:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #90312D | 2.66:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #90312D text on white | 7.88:1 | AAA | Lc 86.5 | Fine for body text |
| #90312D text on black | 2.66:1 | Fails | Lc -15.6 | Dividers and decoration only |
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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F4CFCB
oklch(88.5% 0.042 25.3)
-
Step 300
300
#EEAEA7
oklch(80.9% 0.076 25.9)
-
Step 400
400
#E28178
oklch(70.6% 0.121 26.2)
-
Step 500
500
#D75D56
oklch(63% 0.155 25.8)
-
Step 600
600
#C23F3B
oklch(55.5% 0.168 26)
-
Step 700
700
#A7302D
oklch(49.1% 0.156 26.2)
-
Step 800
800 (this color)
#90312D
oklch(45.2% 0.129 26.1)
-
Step 900
900
#6D2724
oklch(37.6% 0.101 25.6)
-
Step 950
950
#401815
oklch(26.9% 0.063 26.5)
#90312D 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) | #4B452C | 0.137 |
| Deuteranopia (no green cones) | #62592A | 0.127 |
| Tritanopia (no blue cones) | #9E1A31 | 0.041 |
| Achromatopsia (no color) | #515151 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90312D
#90312D
oklch(45.2% 0.129 26.1)
- #00626B
#00626B
oklch(45.3% 0.077 205.8)
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 #90312D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.026
- Auburn #9B2226 ΔE 0.028
- Brown Red #922B05 ΔE 0.031
- Rust Brown #8B3103 ΔE 0.037
- Brick #A03623 ΔE 0.039
- Burnt Red #9F2305 ΔE 0.040
- Brown #A52A2A ΔE 0.042
- Brick Red #8F1402 ΔE 0.047
Use #90312D 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.