#A50910
Closest named color: Carmine (#9D0216). oklch(45.7% 0.182 27.5), rgb(165, 9, 16).
Aa
White text reads best on this color (7.93:1).
About this color
#A50910 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.182 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Carmine (#9D0216), ΔE 0.020 away. White text reads best on it, at 7.93:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Carmine (#9D0216) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #A50910 |
| RGB | rgb(165, 9, 16) |
| HSL | hsl(357, 90%, 34%) |
| OKLCH | oklch(45.7% 0.182 27.5) |
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 #A50910 | 7.93:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #A50910 | 2.64:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #A50910 text on white | 7.93:1 | AAA | Lc 85.2 | Fine for body text |
| #A50910 text on black | 2.64:1 | 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 800.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DF
oklch(93.7% 0.03 27.8)
-
Step 200
200
#FECBC4
oklch(88.5% 0.059 27.4)
-
Step 300
300
#FEA69B
oklch(80.9% 0.106 27.4)
-
Step 400
400
#F97063
oklch(70.8% 0.17 27.7)
-
Step 500
500
#F13C36
oklch(63.2% 0.218 27.5)
-
Step 600
600
#D90013
oklch(55.7% 0.227 27.6)
-
Step 700
700
#B7000E
oklch(49% 0.2 27.6)
-
Step 800
800 (this color)
#A50910
oklch(45.7% 0.182 27.5)
-
Step 900
900
#7C0F0F
oklch(37.7% 0.142 27.5)
-
Step 950
950
#490D0B
oklch(26.9% 0.09 27.2)
#A50910 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) | #453C0D | 0.199 |
| Deuteranopia (no green cones) | #685C02 | 0.180 |
| Tritanopia (no blue cones) | #B70010 | 0.038 |
| Achromatopsia (no color) | #515151 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A50910
#A50910
oklch(45.7% 0.182 27.5)
- #00636E
#00636E
oklch(45.7% 0.079 208)
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 #A50910, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carmine #9D0216 ΔE 0.020
- Burnt Red #9F2305 ΔE 0.026
- Deep Red #9A0200 ΔE 0.027
- Auburn #9B2226 ΔE 0.027
- Rufous #AE2012 ΔE 0.031
- Blood Red #980002 ΔE 0.031
- Brown #A52A2A ΔE 0.033
- Rust Red #AA2704 ΔE 0.035
Use #A50910 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.