#C4378D
Closest named color: Medium Violet Red (#C71585). oklch(57.3% 0.195 347.6), rgb(196, 55, 141).
Aa
White text reads best on this color (4.90:1).
About this color
#C4378D is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.195 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.034 away. White text reads best on it, at 4.90:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.195) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 4.27:1 |
| White text | 4.90:1 |
Values
| HEX | #C4378D |
| RGB | rgb(196, 55, 141) |
| HSL | hsl(323, 56%, 49%) |
| OKLCH | oklch(57.3% 0.195 347.6) |
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 #C4378D | 4.90:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #C4378D | 4.27:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #C4378D text on white | 4.90:1 | AA | Lc 72.9 | Content text, not long reading |
| #C4378D text on black | 4.27:1 | AA large text | Lc -28.8 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F3CDDF
oklch(88.6% 0.049 347.9)
-
Step 300
300
#ECAACB
oklch(81% 0.088 347.8)
-
Step 400
400
#DF7AB1
oklch(70.8% 0.14 347.4)
-
Step 500
500
#D3539D
oklch(63.1% 0.179 347.7)
-
Step 600
600 (this color)
#C4378D
oklch(57.3% 0.195 347.6)
-
Step 700
700
#A32173
oklch(49% 0.181 347.5)
-
Step 800
800
#851F5E
oklch(42.8% 0.15 347.5)
-
Step 900
900
#6B214D
oklch(37.8% 0.117 347.4)
-
Step 950
950
#3F142D
oklch(26.9% 0.075 347.3)
#C4378D 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) | #4B618F | 0.217 |
| Deuteranopia (no green cones) | #747A8A | 0.192 |
| Tritanopia (no blue cones) | #D2325D | 0.078 |
| Achromatopsia (no color) | #717171 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4378D
#C4378D
oklch(57.3% 0.195 347.6)
- #008E6A
#008E6A
oklch(57.4% 0.117 167.2)
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 #C4378D, closest first.
No curated palette has a color within ΔE 0.04 of #C4378D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.034
- Dark Pink #CB416B ΔE 0.063
- Purpley Pink #C83CB9 ΔE 0.067
- Dark Hot Pink #D90166 ΔE 0.071
- Deep Rose #C74767 ΔE 0.073
- Pinky Purple #C94CBE ΔE 0.076
- Cerise #DE0C62 ΔE 0.080
- Dark Rose #B5485D ΔE 0.089
Use #C4378D 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.