#C3121F
Closest named color: Scarlet (#BE0119). oklch(52% 0.204 26), rgb(195, 18, 31).
Aa
White text reads best on this color (6.12:1).
About this color
#C3121F is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.204 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.015 away. White text reads best on it, at 6.12:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #C3121F |
| RGB | rgb(195, 18, 31) |
| HSL | hsl(356, 83%, 42%) |
| OKLCH | oklch(52% 0.204 26) |
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 #C3121F | 6.12:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #C3121F | 3.42:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #C3121F text on white | 6.12:1 | AA | Lc 78.3 | Fine for body text |
| #C3121F text on black | 3.42:1 | AA large text | Lc -23.4 | 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 700.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCCC6
oklch(88.5% 0.055 26.5)
-
Step 300
300
#FAA89F
oklch(80.9% 0.099 26.3)
-
Step 400
400
#F3746B
oklch(70.7% 0.158 26)
-
Step 500
500
#EA4643
oklch(63% 0.201 25.9)
-
Step 600
600
#D61322
oklch(55.7% 0.219 26.1)
-
Step 700
700 (this color)
#C3121F
oklch(52% 0.204 26)
-
Step 800
800
#960914
oklch(42.7% 0.169 26.2)
-
Step 900
900
#781718
oklch(37.6% 0.131 25.8)
-
Step 950
950
#47110F
oklch(27.1% 0.083 26.4)
#C3121F 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) | #534A1D | 0.224 |
| Deuteranopia (no green cones) | #7C6F14 | 0.203 |
| Tritanopia (no blue cones) | #D7001B | 0.040 |
| Achromatopsia (no color) | #626262 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3121F
#C3121F
oklch(52% 0.204 26)
- #007782
#007782
oklch(52% 0.089 206.1)
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 #C3121F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.015
- Lipstick Red #C0022F ΔE 0.021
- Cherry #CF0234 ΔE 0.032
- Firebrick #B22222 ΔE 0.033
- Rose Red #BE013C ΔE 0.037
- Rufous #AE2012 ΔE 0.044
- Rusty Red #AF2F0D ΔE 0.048
- Ruby #CA0147 ΔE 0.048
Use #C3121F 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.