#C63349
Closest named color: Dull Red (#BB3F3F). oklch(55.2% 0.183 17.5), rgb(198, 51, 73).
Aa
White text reads best on this color (5.28:1).
About this color
#C63349 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.183 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.031 away. White text reads best on it, at 5.28:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #C63349 |
| RGB | rgb(198, 51, 73) |
| HSL | hsl(351, 59%, 49%) |
| OKLCH | oklch(55.2% 0.183 17.5) |
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 #C63349 | 5.28:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #C63349 | 3.97:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #C63349 text on white | 5.28:1 | AA | Lc 75.0 | Content text, not long reading |
| #C63349 text on black | 3.97:1 | AA large text | Lc -26.7 | 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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F6CECE
oklch(88.6% 0.045 18)
-
Step 300
300
#F1ABAD
oklch(80.8% 0.083 17.2)
-
Step 400
400
#E77C82
oklch(70.7% 0.132 17.5)
-
Step 500
500
#DC5663
oklch(63.1% 0.168 17.5)
-
Step 600
600 (this color)
#C63349
oklch(55.2% 0.183 17.5)
-
Step 700
700
#AC253B
oklch(49.2% 0.17 17.7)
-
Step 800
800
#8B2131
oklch(42.6% 0.141 17.4)
-
Step 900
900
#70222B
oklch(37.6% 0.11 17.5)
-
Step 950
950
#42151A
oklch(26.9% 0.07 16.4)
#C63349 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) | #5C5849 | 0.201 |
| Deuteranopia (no green cones) | #817745 | 0.185 |
| Tritanopia (no blue cones) | #D9003C | 0.043 |
| Achromatopsia (no color) | #6C6C6C | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C63349
#C63349
oklch(55.2% 0.183 17.5)
- #008386
#008386
oklch(55.3% 0.094 197.6)
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 #C63349, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.031
- Lipstick #D5174E ΔE 0.037
- Dusty Red #B9484E ΔE 0.037
- Cherry #CF0234 ΔE 0.037
- Ruby #CA0147 ΔE 0.038
- Deep Rose #C74767 ΔE 0.044
- Dark Rose #B5485D ΔE 0.044
- Crimson #DC143C ΔE 0.045
Use #C63349 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.