#C03C45
Closest named color: Dull Red (#BB3F3F). oklch(55% 0.168 20.9), rgb(192, 60, 69).
Aa
White text reads best on this color (5.28:1).
About this color
#C03C45 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.168 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.014 away. White text reads best on it, at 5.28:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #C03C45 |
| RGB | rgb(192, 60, 69) |
| HSL | hsl(356, 52%, 49%) |
| OKLCH | oklch(55% 0.168 20.9) |
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 #C03C45 | 5.28:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #C03C45 | 3.97:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #C03C45 text on white | 5.28:1 | AA | Lc 75.2 | Fine for body text |
| #C03C45 text on black | 3.97:1 | AA large text | Lc -26.5 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCD
oklch(88.5% 0.042 21.6)
-
Step 300
300
#EEAEAC
oklch(81% 0.075 20.9)
-
Step 400
400
#E28080
oklch(70.7% 0.121 20.6)
-
Step 500
500
#D75C60
oklch(63.1% 0.155 20.7)
-
Step 600
600 (this color)
#C03C45
oklch(55% 0.168 20.9)
-
Step 700
700
#A72F38
oklch(49.1% 0.156 21)
-
Step 800
800
#88282F
oklch(42.7% 0.13 20.6)
-
Step 900
900
#6D272A
oklch(37.7% 0.1 20.7)
-
Step 950
950
#401819
oklch(27% 0.063 20.7)
#C03C45 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) | #5F5A44 | 0.183 |
| Deuteranopia (no green cones) | #817641 | 0.168 |
| Tritanopia (no blue cones) | #D21940 | 0.045 |
| Achromatopsia (no color) | #6C6C6C | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C03C45
#C03C45
oklch(55% 0.168 20.9)
- #008288
#008288
oklch(55.2% 0.094 200.5)
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 #C03C45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.014
- Dusty Red #B9484E ΔE 0.022
- Dark Rose #B5485D ΔE 0.037
- Deep Rose #C74767 ΔE 0.048
- Faded Red #D3494E ΔE 0.048
- Cherry #CF0234 ΔE 0.050
- Lipstick Red #C0022F ΔE 0.054
- Ruby #CA0147 ΔE 0.054
Use #C03C45 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.