#CA3E17
Closest named color: Brick Orange (#C14A09). oklch(56.4% 0.183 35.3), rgb(202, 62, 23).
Aa
White text reads best on this color (4.98:1).
About this color
#CA3E17 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.183 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.027 away. White text reads best on it, at 4.98:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #CA3E17 |
| RGB | rgb(202, 62, 23) |
| HSL | hsl(13, 80%, 44%) |
| OKLCH | oklch(56.4% 0.183 35.3) |
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 #CA3E17 | 4.98:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #CA3E17 | 4.21:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #CA3E17 text on white | 4.98:1 | AA | Lc 73.3 | Content text, not long reading |
| #CA3E17 text on black | 4.21:1 | AA large text | Lc -28.4 | 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
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F6CFC5
oklch(88.5% 0.046 34.7)
-
Step 300
300
#F0AE9D
oklch(80.8% 0.082 35)
-
Step 400
400
#E68066
oklch(70.6% 0.132 35.3)
-
Step 500
500
#DC5B3B
oklch(63.1% 0.169 35.1)
-
Step 600
600 (this color)
#CA3E17
oklch(56.4% 0.183 35.3)
-
Step 700
700
#AC2B01
oklch(49.1% 0.171 35.2)
-
Step 800
800
#8B2609
oklch(42.6% 0.141 35.2)
-
Step 900
900
#702613
oklch(37.7% 0.109 35.3)
-
Step 950
950
#42170C
oklch(27% 0.07 35.4)
#CA3E17 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) | #685C0E | 0.189 |
| Deuteranopia (no green cones) | #8B7B0B | 0.171 |
| Tritanopia (no blue cones) | #DF0037 | 0.070 |
| Achromatopsia (no color) | #707070 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA3E17
#CA3E17
oklch(56.4% 0.183 35.3)
- #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 #CA3E17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.027
- Sinopia #BB3E03 ΔE 0.032
- Burnt Orange #C04E01 ΔE 0.035
- Rust Orange #C45508 ΔE 0.044
- Dull Red #BB3F3F ΔE 0.045
- Deep Orange #DC4D01 ΔE 0.049
- Burnt Siena #B75203 ΔE 0.050
- Rusty Orange #CD5909 ΔE 0.054
Use #CA3E17 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.