#CF3617
Closest named color: Brick Orange (#C14A09). oklch(56.5% 0.194 33), rgb(207, 54, 23).
Aa
White text reads best on this color (5.00:1).
About this color
#CF3617 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.194 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.040 away. White text reads best on it, at 5.00:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.194) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #CF3617 |
| RGB | rgb(207, 54, 23) |
| HSL | hsl(10, 80%, 45%) |
| OKLCH | oklch(56.5% 0.194 33) |
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 #CF3617 | 5.00:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #CF3617 | 4.19:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #CF3617 text on white | 5.00:1 | AA | Lc 73.2 | Content text, not long reading |
| #CF3617 text on black | 4.19:1 | AA large text | Lc -28.5 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F7CEC5
oklch(88.4% 0.048 32.5)
-
Step 300
300
#F4AC9C
oklch(80.9% 0.088 33)
-
Step 400
400
#EA7D66
oklch(70.7% 0.139 33.1)
-
Step 500
500
#E0563B
oklch(63.1% 0.178 33)
-
Step 600
600 (this color)
#CF3617
oklch(56.5% 0.194 33)
-
Step 700
700
#B02201
oklch(49.1% 0.181 32.9)
-
Step 800
800
#8F2009
oklch(42.7% 0.15 32.9)
-
Step 900
900
#732212
oklch(37.8% 0.117 33.1)
-
Step 950
950
#44150C
oklch(27% 0.075 32.8)
#CF3617 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) | #665A0F | 0.204 |
| Deuteranopia (no green cones) | #8B7C08 | 0.186 |
| Tritanopia (no blue cones) | #E40031 | 0.057 |
| Achromatopsia (no color) | #6F6F6F | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF3617
#CF3617
oklch(56.5% 0.194 33)
- #008498
#008498
oklch(56.4% 0.099 213.1)
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 #CF3617, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.040
- Sinopia #BB3E03 ΔE 0.041
- Dull Red #BB3F3F ΔE 0.048
- Burnt Orange #C04E01 ΔE 0.048
- Deep Orange #DC4D01 ΔE 0.051
- Faded Red #D3494E ΔE 0.052
- Crimson #DC143C ΔE 0.055
- Tomato Red #EC2D01 ΔE 0.055
Use #CF3617 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.