#C03549
Closest named color: Dull Red (#BB3F3F). oklch(54.4% 0.175 17.3), rgb(192, 53, 73).
Aa
White text reads best on this color (5.45:1).
About this color
#C03549 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.175 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.025 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #C03549 |
| RGB | rgb(192, 53, 73) |
| HSL | hsl(351, 57%, 48%) |
| OKLCH | oklch(54.4% 0.175 17.3) |
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 #C03549 | 5.45:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #C03549 | 3.84:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #C03549 text on white | 5.45:1 | AA | Lc 76.0 | Fine for body text |
| #C03549 text on black | 3.84:1 | AA large text | Lc -25.7 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F5CECF
oklch(88.5% 0.044 16.3)
-
Step 300
300
#EFACAE
oklch(80.8% 0.079 17)
-
Step 400
400
#E47E84
oklch(70.7% 0.126 17.1)
-
Step 500
500
#D95965
oklch(63.1% 0.161 17.3)
-
Step 600
600 (this color)
#C03549
oklch(54.4% 0.175 17.3)
-
Step 700
700
#A92A3D
oklch(49.1% 0.162 17.5)
-
Step 800
800
#892533
oklch(42.7% 0.134 17.2)
-
Step 900
900
#6E242D
oklch(37.6% 0.105 16.6)
-
Step 950
950
#41161A
oklch(26.9% 0.067 17.2)
#C03549 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) | #5B5749 | 0.192 |
| Deuteranopia (no green cones) | #7E7445 | 0.177 |
| Tritanopia (no blue cones) | #D2053D | 0.044 |
| Achromatopsia (no color) | #696969 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C03549
#C03549
oklch(54.4% 0.175 17.3)
- #008083
#008083
oklch(54.4% 0.093 197.7)
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 #C03549, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.025
- Dusty Red #B9484E ΔE 0.031
- Dark Rose #B5485D ΔE 0.038
- Ruby #CA0147 ΔE 0.042
- Cherry #CF0234 ΔE 0.043
- Rose Red #BE013C ΔE 0.045
- Lipstick Red #C0022F ΔE 0.046
- Lipstick #D5174E ΔE 0.046
Use #C03549 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.