#CB3148
Closest named color: Lipstick (#D5174E). oklch(55.9% 0.189 18), rgb(203, 49, 72).
Aa
White text reads best on this color (5.15:1).
About this color
#CB3148 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.189 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick (#D5174E), ΔE 0.030 away. White text reads best on it, at 5.15:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Lipstick (#D5174E) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #CB3148 |
| RGB | rgb(203, 49, 72) |
| HSL | hsl(351, 61%, 49%) |
| OKLCH | oklch(55.9% 0.189 18) |
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 #CB3148 | 5.15:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #CB3148 | 4.07:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #CB3148 text on white | 5.15:1 | AA | Lc 74.1 | Content text, not long reading |
| #CB3148 text on black | 4.07:1 | AA large text | Lc -27.6 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCD
oklch(88.4% 0.048 18.1)
-
Step 300
300
#F3ABAC
oklch(81% 0.085 18.2)
-
Step 400
400
#E97B80
oklch(70.8% 0.136 18.3)
-
Step 500
500
#DF5360
oklch(63.2% 0.174 18.2)
-
Step 600
600 (this color)
#CB3148
oklch(55.9% 0.189 18)
-
Step 700
700
#AE2039
oklch(49.1% 0.176 17.9)
-
Step 800
800
#8D1E2F
oklch(42.6% 0.145 18)
-
Step 900
900
#72212A
oklch(37.8% 0.113 18.1)
-
Step 950
950
#431519
oklch(27.1% 0.071 18)
#CB3148 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) | #5D5948 | 0.209 |
| Deuteranopia (no green cones) | #847944 | 0.191 |
| Tritanopia (no blue cones) | #DF003B | 0.043 |
| Achromatopsia (no color) | #6D6D6D | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB3148
#CB3148
oklch(55.9% 0.189 18)
- #008588
#008588
oklch(56% 0.095 197.6)
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 #CB3148, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick #D5174E ΔE 0.030
- Cherry #CF0234 ΔE 0.034
- Crimson #DC143C ΔE 0.036
- Dull Red #BB3F3F ΔE 0.038
- Ruby #CA0147 ΔE 0.038
- Faded Red #D3494E ΔE 0.043
- Dusty Red #B9484E ΔE 0.043
- Deep Rose #C74767 ΔE 0.044
Use #CB3148 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.