#C73E1E
Closest named color: Brick Orange (#C14A09). oklch(55.9% 0.179 34.2), rgb(199, 62, 30).
Aa
White text reads best on this color (5.07:1).
About this color
#C73E1E is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.179 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.027 away. White text reads best on it, at 5.07:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.179) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.13:1 |
| White text | 5.07:1 |
Values
| HEX | #C73E1E |
| RGB | rgb(199, 62, 30) |
| HSL | hsl(11, 74%, 45%) |
| OKLCH | oklch(55.9% 0.179 34.2) |
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 #C73E1E | 5.07:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #C73E1E | 4.13:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #C73E1E text on white | 5.07:1 | AA | Lc 73.9 | Content text, not long reading |
| #C73E1E text on black | 4.13:1 | AA large text | Lc -27.8 | 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
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F5CFC6
oklch(88.4% 0.045 33.5)
-
Step 300
300
#F0AE9E
oklch(80.9% 0.081 34.1)
-
Step 400
400
#E58169
oklch(70.7% 0.129 34.5)
-
Step 500
500
#DA5C40
oklch(63% 0.164 34)
-
Step 600
600 (this color)
#C73E1E
oklch(55.9% 0.179 34.2)
-
Step 700
700
#AA2D0E
oklch(49% 0.166 34.1)
-
Step 800
800
#8A2810
oklch(42.7% 0.137 34.5)
-
Step 900
900
#6F2616
oklch(37.6% 0.107 33.9)
-
Step 950
950
#42180E
oklch(27.2% 0.068 34.7)
#C73E1E 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) | #675B18 | 0.185 |
| Deuteranopia (no green cones) | #897A16 | 0.169 |
| Tritanopia (no blue cones) | #DB0638 | 0.067 |
| Achromatopsia (no color) | #6E6E6E | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C73E1E
#C73E1E
oklch(55.9% 0.179 34.2)
- #008398
#008398
oklch(56.1% 0.099 214.1)
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 #C73E1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.027
- Sinopia #BB3E03 ΔE 0.028
- Burnt Orange #C04E01 ΔE 0.036
- Dull Red #BB3F3F ΔE 0.038
- Rust Orange #C45508 ΔE 0.047
- Burnt Siena #B75203 ΔE 0.050
- Dusty Red #B9484E ΔE 0.052
- Faded Red #D3494E ΔE 0.054
Use #C73E1E 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.