#CF3628
Closest named color: Dull Red (#BB3F3F). oklch(56.6% 0.192 29.6), rgb(207, 54, 40).
Aa
White text reads best on this color (4.98:1).
About this color
#CF3628 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.192 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.042 away. White text reads best on it, at 4.98:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.192) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #CF3628 |
| RGB | rgb(207, 54, 40) |
| HSL | hsl(5, 68%, 48%) |
| OKLCH | oklch(56.6% 0.192 29.6) |
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 #CF3628 | 4.98:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #CF3628 | 4.21:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #CF3628 text on white | 4.98:1 | AA | Lc 73.1 | Content text, not long reading |
| #CF3628 text on black | 4.21:1 | AA large text | Lc -28.6 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F7CEC7
oklch(88.5% 0.048 29.4)
-
Step 300
300
#F3ACA0
oklch(80.9% 0.086 29.8)
-
Step 400
400
#EA7C6C
oklch(70.7% 0.139 29.6)
-
Step 500
500
#E05545
oklch(63.1% 0.177 29.5)
-
Step 600
600 (this color)
#CF3628
oklch(56.6% 0.192 29.6)
-
Step 700
700
#AF2217
oklch(49% 0.178 29.6)
-
Step 800
800
#8E2016
oklch(42.6% 0.147 29.7)
-
Step 900
900
#722219
oklch(37.6% 0.114 29.8)
-
Step 950
950
#431510
oklch(26.9% 0.073 29)
#CF3628 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) | #655A25 | 0.204 |
| Deuteranopia (no green cones) | #8A7C20 | 0.188 |
| Tritanopia (no blue cones) | #E40034 | 0.052 |
| Achromatopsia (no color) | #707070 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF3628
#CF3628
oklch(56.6% 0.192 29.6)
- #008596
#008596
oklch(56.5% 0.098 210.4)
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 #CF3628, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.042
- Faded Red #D3494E ΔE 0.044
- Crimson #DC143C ΔE 0.046
- Sinopia #BB3E03 ΔE 0.047
- Brick Orange #C14A09 ΔE 0.047
- Cherry #CF0234 ΔE 0.048
- Dark Coral #CF524E ΔE 0.051
- Dusty Red #B9484E ΔE 0.055
Use #CF3628 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.