#C3374A
Closest named color: Dull Red (#BB3F3F). oklch(55.1% 0.176 17.7), rgb(195, 55, 74).
Aa
White text reads best on this color (5.29:1).
About this color
#C3374A is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.176 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.026 away. White text reads best on it, at 5.29:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #C3374A |
| RGB | rgb(195, 55, 74) |
| HSL | hsl(352, 56%, 49%) |
| OKLCH | oklch(55.1% 0.176 17.7) |
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 #C3374A | 5.29:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #C3374A | 3.96:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #C3374A text on white | 5.29:1 | AA | Lc 75.1 | Fine for body text |
| #C3374A text on black | 3.96:1 | AA large text | Lc -26.6 | 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
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F5CECE
oklch(88.5% 0.044 18)
-
Step 300
300
#EFACAE
oklch(80.8% 0.079 17)
-
Step 400
400
#E47E83
oklch(70.7% 0.126 17.7)
-
Step 500
500
#D95964
oklch(63.1% 0.161 17.8)
-
Step 600
600 (this color)
#C3374A
oklch(55.1% 0.176 17.7)
-
Step 700
700
#A9293C
oklch(49% 0.163 17.8)
-
Step 800
800
#8A2532
oklch(42.8% 0.135 17.9)
-
Step 900
900
#6F242C
oklch(37.7% 0.106 17.6)
-
Step 950
950
#41161A
oklch(26.9% 0.067 17.2)
#C3374A 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) | #5D594A | 0.193 |
| Deuteranopia (no green cones) | #817646 | 0.177 |
| Tritanopia (no blue cones) | #D6093F | 0.045 |
| Achromatopsia (no color) | #6B6B6B | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3374A
#C3374A
oklch(55.1% 0.176 17.7)
- #008285
#008285
oklch(55% 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 #C3374A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.026
- Dusty Red #B9484E ΔE 0.030
- Dark Rose #B5485D ΔE 0.038
- Deep Rose #C74767 ΔE 0.042
- Cherry #CF0234 ΔE 0.043
- Lipstick #D5174E ΔE 0.043
- Ruby #CA0147 ΔE 0.043
- Dark Pink #CB416B ΔE 0.048
Use #C3374A 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.