#903A45
Closest named color: Auburn (#9B2226). oklch(46.9% 0.117 15), rgb(144, 58, 69).
Aa
White text reads best on this color (7.29:1).
About this color
#903A45 is a medium-dark, moderately saturated red. In OKLCH its lightness is 47%, its chroma 0.117 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.048 away. White text reads best on it, at 7.29:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #903A45 |
| RGB | rgb(144, 58, 69) |
| HSL | hsl(352, 43%, 40%) |
| OKLCH | oklch(46.9% 0.117 15) |
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 #903A45 | 7.29:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #903A45 | 2.87:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #903A45 text on white | 7.29:1 | AAA | Lc 84.8 | Fine for body text |
| #903A45 text on black | 2.87:1 | Fails | Lc -17.2 | 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 700.
-
Step 50
50
#FAF3F4
oklch(97% 0.008 7.3)
-
Step 100
100
#F5E6E6
oklch(93.7% 0.016 17.4)
-
Step 200
200
#EDD1D2
oklch(88.4% 0.031 15.3)
-
Step 300
300
#E3B2B5
oklch(80.9% 0.057 14.3)
-
Step 400
400
#D3898E
oklch(70.7% 0.091 15.2)
-
Step 500
500
#C56A73
oklch(63.1% 0.116 14.7)
-
Step 600
600
#B0505B
oklch(55.5% 0.125 15)
-
Step 700
700 (this color)
#903A45
oklch(46.9% 0.117 15)
-
Step 800
800
#7B363E
oklch(42.8% 0.096 14.9)
-
Step 900
900
#632F34
oklch(37.6% 0.075 15.3)
-
Step 950
950
#3A1C1F
oklch(26.9% 0.047 14.4)
#903A45 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) | #4D4B45 | 0.128 |
| Deuteranopia (no green cones) | #635D43 | 0.118 |
| Tritanopia (no blue cones) | #9D2D3E | 0.031 |
| Achromatopsia (no color) | #565656 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903A45
#903A45
oklch(46.9% 0.117 15)
- #006868
#006868
oklch(46.8% 0.08 194.8)
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 #903A45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.048
- Brick #A03623 ΔE 0.050
- Dark Mauve #874C62 ΔE 0.051
- Brown #A52A2A ΔE 0.051
- Brownish Purple #76424E ΔE 0.052
- Light Maroon #A24857 ΔE 0.053
- Red Brown #8B2E16 ΔE 0.056
- Light Burgundy #A8415B ΔE 0.059
Use #903A45 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.