#C74637
Closest named color: Dull Red (#BB3F3F). oklch(57.1% 0.167 29.7), rgb(199, 70, 55).
Aa
White text reads best on this color (4.81:1).
About this color
#C74637 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.167 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.032 away. White text reads best on it, at 4.81:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.35:1 |
| White text | 4.81:1 |
Values
| HEX | #C74637 |
| RGB | rgb(199, 70, 55) |
| HSL | hsl(6, 57%, 50%) |
| OKLCH | oklch(57.1% 0.167 29.7) |
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 #C74637 | 4.81:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #C74637 | 4.35:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #C74637 text on white | 4.81:1 | AA | Lc 72.5 | Content text, not long reading |
| #C74637 text on black | 4.35:1 | AA large text | Lc -29.2 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F4D0C9
oklch(88.6% 0.042 30.9)
-
Step 300
300
#EDAFA4
oklch(80.9% 0.075 30.1)
-
Step 400
400
#E28273
oklch(70.7% 0.121 29.8)
-
Step 500
500
#D65F4F
oklch(63.1% 0.153 29.8)
-
Step 600
600 (this color)
#C74637
oklch(57.1% 0.167 29.7)
-
Step 700
700
#A73225
oklch(49.2% 0.155 29.9)
-
Step 800
800
#872B20
oklch(42.7% 0.128 30)
-
Step 900
900
#6D281F
oklch(37.7% 0.1 29.9)
-
Step 950
950
#401813
oklch(26.9% 0.064 29.2)
#C74637 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) | #6A6035 | 0.175 |
| Deuteranopia (no green cones) | #8A7C33 | 0.160 |
| Tritanopia (no blue cones) | #DB2443 | 0.058 |
| Achromatopsia (no color) | #727272 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C74637
#C74637
oklch(57.1% 0.167 29.7)
- #008797
#008797
oklch(57.1% 0.099 209.3)
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 #C74637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.032
- Dark Coral #CF524E ΔE 0.035
- Faded Red #D3494E ΔE 0.036
- Brick Orange #C14A09 ΔE 0.037
- Dusty Red #B9484E ΔE 0.037
- Sinopia #BB3E03 ΔE 0.043
- Burnt Orange #C04E01 ΔE 0.043
- Rust Orange #C45508 ΔE 0.049
Use #C74637 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.