#A42027
Closest named color: Brown (#A52A2A). oklch(47% 0.167 24.2), rgb(164, 32, 39).
Aa
White text reads best on this color (7.46:1).
About this color
#A42027 is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.167 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.014 away. White text reads best on it, at 7.46:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #A42027 |
| RGB | rgb(164, 32, 39) |
| HSL | hsl(357, 67%, 38%) |
| OKLCH | oklch(47% 0.167 24.2) |
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 #A42027 | 7.46:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #A42027 | 2.81:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #A42027 text on white | 7.46:1 | AAA | Lc 84.4 | Fine for body text |
| #A42027 text on black | 2.81:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E2
oklch(93.5% 0.023 24.1)
-
Step 200
200
#F6CECB
oklch(88.5% 0.046 23.1)
-
Step 300
300
#F1ADA7
oklch(81% 0.081 24.7)
-
Step 400
400
#E67E78
oklch(70.7% 0.129 24.3)
-
Step 500
500
#DB5856
oklch(63% 0.165 23.9)
-
Step 600
600
#C7383B
oklch(55.6% 0.18 24.2)
-
Step 700
700 (this color)
#A42027
oklch(47% 0.167 24.2)
-
Step 800
800
#8B2426
oklch(42.7% 0.138 24.3)
-
Step 900
900
#702423
oklch(37.7% 0.108 24.6)
-
Step 950
950
#421615
oklch(27% 0.069 24.1)
#A42027 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) | #4A4326 | 0.182 |
| Deuteranopia (no green cones) | #6A5F22 | 0.166 |
| Tritanopia (no blue cones) | #B50024 | 0.035 |
| Achromatopsia (no color) | #555555 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A42027
#A42027
oklch(47% 0.167 24.2)
- #00676F
#00676F
oklch(46.8% 0.08 204.1)
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 #A42027, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.014
- Auburn #9B2226 ΔE 0.019
- Rufous #AE2012 ΔE 0.027
- Burnt Red #9F2305 ΔE 0.028
- Firebrick #B22222 ΔE 0.031
- Rouge #AB1239 ΔE 0.031
- Rust Red #AA2704 ΔE 0.032
- Carmine #9D0216 ΔE 0.032
Use #A42027 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.