#C21754
Closest named color: Ruby (#CA0147). oklch(52.9% 0.201 8.5), rgb(194, 23, 84).
Aa
White text reads best on this color (5.92:1).
About this color
#C21754 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.201 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.023 away. White text reads best on it, at 5.92:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #C21754 |
| RGB | rgb(194, 23, 84) |
| HSL | hsl(339, 79%, 43%) |
| OKLCH | oklch(52.9% 0.201 8.5) |
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 #C21754 | 5.92:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #C21754 | 3.54:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #C21754 text on white | 5.92:1 | AA | Lc 77.6 | Fine for body text |
| #C21754 text on black | 3.54:1 | AA large text | Lc -24.1 | 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
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FBE3E6
oklch(93.6% 0.027 9)
-
Step 200
200
#F8CCD2
oklch(88.5% 0.05 8.9)
-
Step 300
300
#F4A8B5
oklch(80.8% 0.091 8)
-
Step 400
400
#EB778F
oklch(70.8% 0.144 8.4)
-
Step 500
500
#E04D73
oklch(63.1% 0.184 8.5)
-
Step 600
600 (this color)
#C21754
oklch(52.9% 0.201 8.5)
-
Step 700
700
#B0134B
oklch(49.2% 0.187 8.6)
-
Step 800
800
#8F163E
oklch(42.7% 0.155 8.4)
-
Step 900
900
#731C35
oklch(37.7% 0.121 8.2)
-
Step 950
950
#44121F
oklch(27% 0.077 8.2)
#C21754 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) | #4C4F55 | 0.228 |
| Deuteranopia (no green cones) | #777050 | 0.206 |
| Tritanopia (no blue cones) | #D40035 | 0.053 |
| Achromatopsia (no color) | #646464 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C21754
#C21754
oklch(52.9% 0.201 8.5)
- #007C76
#007C76
oklch(52.9% 0.092 188.9)
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 #C21754, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.023
- Rose Red #BE013C ΔE 0.033
- Lipstick #D5174E ΔE 0.041
- Raspberry #B00149 ΔE 0.044
- Lipstick Red #C0022F ΔE 0.046
- Cherry #CF0234 ΔE 0.048
- Dark Hot Pink #D90166 ΔE 0.052
- Cerise #DE0C62 ΔE 0.058
Use #C21754 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.