#903033
Closest named color: Auburn (#9B2226). oklch(45.2% 0.13 22.2), rgb(144, 48, 51).
Aa
White text reads best on this color (7.90:1).
About this color
#903033 is a medium-dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.130 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.028 away. White text reads best on it, at 7.90:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #903033 |
| RGB | rgb(144, 48, 51) |
| HSL | hsl(358, 50%, 38%) |
| OKLCH | oklch(45.2% 0.13 22.2) |
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 #903033 | 7.90:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #903033 | 2.65:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #903033 text on white | 7.90:1 | AAA | Lc 86.6 | Fine for body text |
| #903033 text on black | 2.65:1 | Fails | Lc -15.5 | 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
#F8E5E3
oklch(93.7% 0.021 24.8)
-
Step 200
200
#F4CFCD
oklch(88.5% 0.042 21.6)
-
Step 300
300
#EEAEAA
oklch(80.9% 0.076 22.9)
-
Step 400
400
#E2807E
oklch(70.6% 0.121 21.8)
-
Step 500
500
#D75C5D
oklch(63% 0.155 22.1)
-
Step 600
600
#C23E43
oklch(55.5% 0.168 22.4)
-
Step 700
700
#A72E35
oklch(49% 0.157 22.1)
-
Step 800
800 (this color)
#903033
oklch(45.2% 0.13 22.2)
-
Step 900
900
#6D2728
oklch(37.7% 0.1 22.4)
-
Step 950
950
#401818
oklch(27% 0.063 22.2)
#903033 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) | #494432 | 0.140 |
| Deuteranopia (no green cones) | #615930 | 0.130 |
| Tritanopia (no blue cones) | #9E1A32 | 0.037 |
| Achromatopsia (no color) | #515151 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903033
#903033
oklch(45.2% 0.13 22.2)
- #006268
#006268
oklch(45.2% 0.077 202.1)
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 #903033, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.028
- Red Brown #8B2E16 ΔE 0.033
- Brown Red #922B05 ΔE 0.039
- Brown #A52A2A ΔE 0.042
- Brick #A03623 ΔE 0.043
- Burnt Red #9F2305 ΔE 0.045
- Rust Brown #8B3103 ΔE 0.045
- Carmine #9D0216 ΔE 0.050
Use #903033 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.