#903744
Closest named color: Auburn (#9B2226). oklch(46.5% 0.121 14.3), rgb(144, 55, 68).
Aa
White text reads best on this color (7.45:1).
About this color
#903744 is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.121 and its hue 14°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.045 away. White text reads best on it, at 7.45:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #903744 |
| RGB | rgb(144, 55, 68) |
| HSL | hsl(351, 45%, 39%) |
| OKLCH | oklch(46.5% 0.121 14.3) |
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 #903744 | 7.45:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #903744 | 2.81:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #903744 text on white | 7.45:1 | AAA | Lc 85.3 | Fine for body text |
| #903744 text on black | 2.81:1 | Fails | Lc -16.8 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F5E6E6
oklch(93.7% 0.016 17.4)
-
Step 200
200
#EED1D2
oklch(88.5% 0.033 15.4)
-
Step 300
300
#E4B2B5
oklch(81% 0.058 14.4)
-
Step 400
400
#D4888F
oklch(70.7% 0.094 13.7)
-
Step 500
500
#C76973
oklch(63.2% 0.119 14.4)
-
Step 600
600
#B24F5B
oklch(55.7% 0.129 14.8)
-
Step 700
700 (this color)
#903744
oklch(46.5% 0.121 14.3)
-
Step 800
800
#7C343E
oklch(42.6% 0.1 13.8)
-
Step 900
900
#642E35
oklch(37.6% 0.078 13.5)
-
Step 950
950
#3B1C1F
oklch(27.1% 0.049 14.7)
#903744 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) | #4B4A44 | 0.133 |
| Deuteranopia (no green cones) | #625C42 | 0.122 |
| Tritanopia (no blue cones) | #9D293C | 0.031 |
| Achromatopsia (no color) | #555555 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903744
#903744
oklch(46.5% 0.121 14.3)
- #006766
#006766
oklch(46.5% 0.08 193.6)
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 #903744, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.045
- Brown #A52A2A ΔE 0.050
- Brick #A03623 ΔE 0.052
- Brownish Purple #76424E ΔE 0.053
- Red Brown #8B2E16 ΔE 0.055
- Dark Mauve #874C62 ΔE 0.055
- Light Maroon #A24857 ΔE 0.057
- Berry #990F4B ΔE 0.061
Use #903744 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.