#A02837
Closest named color: Brown (#A52A2A). oklch(47.2% 0.155 18.9), rgb(160, 40, 55).
Aa
White text reads best on this color (7.35:1).
About this color
#A02837 is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.155 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.021 away. White text reads best on it, at 7.35:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #A02837 |
| RGB | rgb(160, 40, 55) |
| HSL | hsl(353, 60%, 39%) |
| OKLCH | oklch(47.2% 0.155 18.9) |
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 #A02837 | 7.35:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #A02837 | 2.85:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #A02837 text on white | 7.35:1 | AAA | Lc 84.3 | Fine for body text |
| #A02837 text on black | 2.85:1 | Fails | Lc -17.6 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCE
oklch(88.6% 0.042 19.8)
-
Step 300
300
#EDAEAE
oklch(80.9% 0.074 18.8)
-
Step 400
400
#E28083
oklch(70.7% 0.121 18.7)
-
Step 500
500
#D65C64
oklch(63% 0.154 18.7)
-
Step 600
600
#C13E4B
oklch(55.5% 0.166 18.9)
-
Step 700
700 (this color)
#A02837
oklch(47.2% 0.155 18.9)
-
Step 800
800
#872832
oklch(42.6% 0.129 18.6)
-
Step 900
900
#6D272C
oklch(37.8% 0.1 19)
-
Step 950
950
#40181A
oklch(27.1% 0.063 19.2)
#A02837 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) | #4A4637 | 0.170 |
| Deuteranopia (no green cones) | #685F34 | 0.156 |
| Tritanopia (no blue cones) | #B0002F | 0.038 |
| Achromatopsia (no color) | #565656 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A02837
#A02837
oklch(47.2% 0.155 18.9)
- #00696C
#00696C
oklch(47.3% 0.08 198.2)
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 #A02837, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.021
- Auburn #9B2226 ΔE 0.023
- Rouge #AB1239 ΔE 0.029
- Brick #A03623 ΔE 0.039
- Cranberry #9E003A ΔE 0.041
- Firebrick #B22222 ΔE 0.042
- Burnt Red #9F2305 ΔE 0.043
- Rufous #AE2012 ΔE 0.043
Use #A02837 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.