#CF3604
Closest named color: Brick Orange (#C14A09). oklch(56.4% 0.196 35), rgb(207, 54, 4).
Aa
White text reads best on this color (5.02:1).
About this color
#CF3604 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.196 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.038 away. White text reads best on it, at 5.02:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.18:1 |
| White text | 5.02:1 |
Values
| HEX | #CF3604 |
| RGB | rgb(207, 54, 4) |
| HSL | hsl(15, 96%, 41%) |
| OKLCH | oklch(56.4% 0.196 35) |
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 #CF3604 | 5.02:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #CF3604 | 4.18:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #CF3604 text on white | 5.02:1 | AA | Lc 73.2 | Content text, not long reading |
| #CF3604 text on black | 4.18:1 | 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
#F8CEC4
oklch(88.5% 0.05 33.6)
-
Step 300
300
#F4AD9A
oklch(81% 0.088 35.6)
-
Step 400
400
#EA7D62
oklch(70.6% 0.141 35)
-
Step 500
500
#E15633
oklch(63.2% 0.181 35.2)
-
Step 600
600 (this color)
#CF3604
oklch(56.4% 0.196 35)
-
Step 700
700
#AC2A00
oklch(49% 0.172 35)
-
Step 800
800
#8F2100
oklch(42.8% 0.15 35)
-
Step 900
900
#73220D
oklch(37.7% 0.118 35.1)
-
Step 950
950
#44160A
oklch(27.1% 0.074 35.6)
#CF3604 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) | #665900 | 0.204 |
| Deuteranopia (no green cones) | #8C7B00 | 0.181 |
| Tritanopia (no blue cones) | #E5002F | 0.062 |
| Achromatopsia (no color) | #6F6F6F | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF3604
#CF3604
oklch(56.4% 0.196 35)
- #00849A
#00849A
oklch(56.4% 0.1 214.8)
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 #CF3604, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.038
- Sinopia #BB3E03 ΔE 0.039
- Burnt Orange #C04E01 ΔE 0.045
- Deep Orange #DC4D01 ΔE 0.049
- Dull Red #BB3F3F ΔE 0.053
- Rust Orange #C45508 ΔE 0.053
- Tomato Red #EC2D01 ΔE 0.056
- Faded Red #D3494E ΔE 0.058
Use #CF3604 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.