#A42F45
Closest named color: Rouge (#AB1239). oklch(48.9% 0.152 14.1), rgb(164, 47, 69).
Aa
White text reads best on this color (6.83:1).
About this color
#A42F45 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.152 and its hue 14°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.032 away. White text reads best on it, at 6.83:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.07:1 |
| White text | 6.83:1 |
Values
| HEX | #A42F45 |
| RGB | rgb(164, 47, 69) |
| HSL | hsl(349, 55%, 41%) |
| OKLCH | oklch(48.9% 0.152 14.1) |
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 #A42F45 | 6.83:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #A42F45 | 3.07:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #A42F45 text on white | 6.83:1 | AA | Lc 82.5 | Fine for body text |
| #A42F45 text on black | 3.07:1 | AA large text | Lc -19.4 | 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
#F8E4E5
oklch(93.5% 0.022 14.1)
-
Step 200
200
#F3CFD1
oklch(88.6% 0.041 14.2)
-
Step 300
300
#ECAEB2
oklch(80.9% 0.073 14.5)
-
Step 400
400
#E0808A
oklch(70.7% 0.119 13.9)
-
Step 500
500
#D45D6D
oklch(63.1% 0.15 14.2)
-
Step 600
600
#BF3F55
oklch(55.5% 0.163 14.2)
-
Step 700
700 (this color)
#A42F45
oklch(48.9% 0.152 14.1)
-
Step 800
800
#862939
oklch(42.7% 0.127 14.3)
-
Step 900
900
#6C2731
oklch(37.7% 0.098 14.4)
-
Step 950
950
#3F181D
oklch(27% 0.061 14.2)
#A42F45 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) | #4D4B45 | 0.169 |
| Deuteranopia (no green cones) | #6B6342 | 0.154 |
| Tritanopia (no blue cones) | #B31238 | 0.037 |
| Achromatopsia (no color) | #5B5B5B | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A42F45
#A42F45
oklch(48.9% 0.152 14.1)
- #006F6E
#006F6E
oklch(49% 0.084 193.7)
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 #A42F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.032
- Brown #A52A2A ΔE 0.033
- Light Burgundy #A8415B ΔE 0.040
- Auburn #9B2226 ΔE 0.045
- Raspberry #B00149 ΔE 0.045
- Firebrick #B22222 ΔE 0.046
- Light Maroon #A24857 ΔE 0.047
- Brick #A03623 ΔE 0.048
Use #A42F45 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.