#A01421
Closest named color: Auburn (#9B2226). oklch(45.3% 0.172 24), rgb(160, 20, 33).
Aa
White text reads best on this color (8.02:1).
About this color
#A01421 is a medium-dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.172 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.015 away. White text reads best on it, at 8.02:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.61:1 |
| White text | 8.02:1 |
Values
| HEX | #A01421 |
| RGB | rgb(160, 20, 33) |
| HSL | hsl(354, 78%, 35%) |
| OKLCH | oklch(45.3% 0.172 24) |
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 #A01421 | 8.02:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #A01421 | 2.61:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #A01421 text on white | 8.02:1 | AAA | Lc 85.9 | Fine for body text |
| #A01421 text on black | 2.61:1 | Fails | Lc -16.1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCCC7
oklch(88.6% 0.055 25.2)
-
Step 300
300
#FBA7A1
oklch(80.9% 0.1 24)
-
Step 400
400
#F4736E
oklch(70.7% 0.16 24.2)
-
Step 500
500
#EC4347
oklch(63.1% 0.205 24.1)
-
Step 600
600
#D70629
oklch(55.6% 0.223 24)
-
Step 700
700
#B70020
oklch(49.1% 0.199 24)
-
Step 800
800 (this color)
#A01421
oklch(45.3% 0.172 24)
-
Step 900
900
#79151B
oklch(37.7% 0.134 23.9)
-
Step 950
950
#471011
oklch(27% 0.084 23.8)
#A01421 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) | #443D20 | 0.189 |
| Deuteranopia (no green cones) | #665B1B | 0.171 |
| Tritanopia (no blue cones) | #B1001B | 0.034 |
| Achromatopsia (no color) | #505050 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A01421
#A01421
oklch(45.3% 0.172 24)
- #00626A
#00626A
oklch(45.3% 0.077 204.6)
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 #A01421, closest first.
No curated palette has a color within ΔE 0.04 of #A01421.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.015
- Carmine #9D0216 ΔE 0.016
- Deep Red #9A0200 ΔE 0.028
- Burnt Red #9F2305 ΔE 0.029
- Brown #A52A2A ΔE 0.030
- Blood Red #980002 ΔE 0.031
- Rouge #AB1239 ΔE 0.037
- Rufous #AE2012 ΔE 0.039
Use #A01421 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.