#C73031
Closest named color: Dull Red (#BB3F3F). oklch(54.8% 0.188 25.7), rgb(199, 48, 49).
Aa
White text reads best on this color (5.39:1).
About this color
#C73031 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.188 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.028 away. White text reads best on it, at 5.39:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #C73031 |
| RGB | rgb(199, 48, 49) |
| HSL | hsl(360, 61%, 48%) |
| OKLCH | oklch(54.8% 0.188 25.7) |
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 #C73031 | 5.39:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #C73031 | 3.89:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #C73031 text on white | 5.39:1 | AA | Lc 75.4 | Fine for body text |
| #C73031 text on black | 3.89:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F7CEC9
oklch(88.5% 0.047 26.2)
-
Step 300
300
#F3ACA4
oklch(81% 0.085 26.3)
-
Step 400
400
#E97C74
oklch(70.7% 0.136 25.4)
-
Step 500
500
#DF5550
oklch(63.1% 0.174 25.4)
-
Step 600
600 (this color)
#C73031
oklch(54.8% 0.188 25.7)
-
Step 700
700
#AE2326
oklch(49.1% 0.175 25.7)
-
Step 800
800
#8D2121
oklch(42.7% 0.144 25.8)
-
Step 900
900
#722220
oklch(37.8% 0.113 25.6)
-
Step 950
950
#431513
oklch(26.9% 0.072 25.6)
#C73031 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) | #5E552F | 0.203 |
| Deuteranopia (no green cones) | #83762B | 0.186 |
| Tritanopia (no blue cones) | #DB0032 | 0.044 |
| Achromatopsia (no color) | #6A6A6A | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C73031
#C73031
oklch(54.8% 0.188 25.7)
- #00808B
#00808B
oklch(54.8% 0.094 205.4)
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 #C73031, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.028
- Cherry #CF0234 ΔE 0.035
- Lipstick Red #C0022F ΔE 0.044
- Dusty Red #B9484E ΔE 0.045
- Crimson #DC143C ΔE 0.046
- Scarlet #BE0119 ΔE 0.046
- Sinopia #BB3E03 ΔE 0.046
- Ruby #CA0147 ΔE 0.051
Use #C73031 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.