#FF378F
Closest named color: Neon Pink (#F72585). oklch(67% 0.24 0), rgb(255, 55, 143).
Aa
Black text reads best on this color (6.19:1).
About this color
#FF378F is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.240 and its hue 0°. Its hue sits on the warm side of the wheel. The nearest named color is Neon Pink (#F72585), ΔE 0.027 away. Black text reads best on it, at 6.19:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.240) |
| Temperature | warm |
| Nearest name | Neon Pink (#F72585) |
| Black text | 6.19:1 |
| White text | 3.38:1 |
Values
| HEX | #FF378F |
| RGB | rgb(255, 55, 143) |
| HSL | hsl(334, 100%, 61%) |
| OKLCH | oklch(67% 0.24 0) |
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 #FF378F | 3.38:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #FF378F | 6.19:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #FF378F text on white | 3.38:1 | AA large text | Lc 59.7 | Large or bold text, headings |
| #FF378F text on black | 6.19:1 | AA | Lc -42.0 | Non-text elements, placeholder text |
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 400.
-
Step 50
50
#FFF1F5
oklch(97% 0.016 358)
-
Step 100
100
#FFE1E9
oklch(93.7% 0.035 359.8)
-
Step 200
200
#FFC8D7
oklch(88.5% 0.065 0.4)
-
Step 300
300
#FFA0BD
oklch(80.9% 0.117 0.3)
-
Step 400
400 (this color)
#FF378F
oklch(67% 0.24 0)
-
Step 500
500
#F60083
oklch(63% 0.256 360)
-
Step 600
600
#D0006E
oklch(55.6% 0.225 359.9)
-
Step 700
700
#B0005C
oklch(49% 0.199 360)
-
Step 800
800
#92004B
oklch(42.7% 0.173 0.1)
-
Step 900
900
#7B003E
oklch(37.7% 0.153 0.2)
-
Step 950
950
#4C0024
oklch(27% 0.109 0.1)
#FF378F 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) | #677391 | 0.271 |
| Deuteranopia (no green cones) | #9D998A | 0.243 |
| Tritanopia (no blue cones) | #FF005F | 0.065 |
| Achromatopsia (no color) | #8B8B8B | 0.242 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FF378F
#FF378F
oklch(67% 0.24 0)
- #00AD98
#00AD98
oklch(67% 0.122 180)
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 #FF378F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Pink #F72585 ΔE 0.027
- Deep Pink #FF1493 ΔE 0.029
- Strong Pink #FF0789 ΔE 0.030
- Barbie Pink #FE46A5 ΔE 0.032
- Electric Pink #FF0490 ΔE 0.033
- Rose #FF006E ΔE 0.048
- Shocking Pink #FE02A2 ΔE 0.050
- Warm Pink #FB5581 ΔE 0.051
Use #FF378F 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.