#903413
Closest named color: Rust Brown (#8B3103). oklch(45.3% 0.132 38.5), rgb(144, 52, 19).
Aa
White text reads best on this color (7.81:1).
About this color
#903413 is a medium-dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.132 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.015 away. White text reads best on it, at 7.81:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.68:1 |
| White text | 7.81:1 |
Values
| HEX | #903413 |
| RGB | rgb(144, 52, 19) |
| HSL | hsl(16, 77%, 32%) |
| OKLCH | oklch(45.3% 0.132 38.5) |
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 #903413 | 7.81:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #903413 | 2.68:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #903413 text on white | 7.81:1 | AAA | Lc 86.3 | Fine for body text |
| #903413 text on black | 2.68:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F4D0C5
oklch(88.5% 0.043 37.7)
-
Step 300
300
#EDB09C
oklch(80.9% 0.077 38.9)
-
Step 400
400
#E28466
oklch(70.8% 0.124 38.4)
-
Step 500
500
#D6613A
oklch(63% 0.157 38.6)
-
Step 600
600
#C24311
oklch(55.6% 0.172 38.5)
-
Step 700
700
#A73400
oklch(49.2% 0.159 38.6)
-
Step 800
800 (this color)
#903413
oklch(45.3% 0.132 38.5)
-
Step 900
900
#6D2912
oklch(37.6% 0.103 38.4)
-
Step 950
950
#40190C
oklch(26.9% 0.065 38.7)
#903413 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) | #4F450D | 0.131 |
| Deuteranopia (no green cones) | #655A0E | 0.121 |
| Tritanopia (no blue cones) | #9F1B2E | 0.058 |
| Achromatopsia (no color) | #525252 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903413
#903413
oklch(45.3% 0.132 38.5)
- #006074
#006074
oklch(45.2% 0.081 218.5)
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 #903413, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.015
- Brown Red #922B05 ΔE 0.015
- Red Brown #8B2E16 ΔE 0.018
- Burnt Red #9F2305 ΔE 0.035
- Brick #A03623 ΔE 0.037
- Saddle Brown #8B4513 ΔE 0.038
- Russet #A13905 ΔE 0.039
- Auburn #9B2226 ΔE 0.043
Use #903413 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.