#CA5128
Closest named color: Rust Orange (#C45508). oklch(58.8% 0.163 38.3), rgb(202, 81, 40).
Aa
Black text reads best on this color (4.71:1).
About this color
#CA5128 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.163 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.024 away. Black text reads best on it, at 4.71:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #CA5128 |
| RGB | rgb(202, 81, 40) |
| HSL | hsl(15, 67%, 47%) |
| OKLCH | oklch(58.8% 0.163 38.3) |
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 #CA5128 | 4.45:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #CA5128 | 4.71:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #CA5128 text on white | 4.45:1 | AA large text | Lc 70.1 | Content text, not long reading |
| #CA5128 text on black | 4.71:1 | AA | Lc -31.6 | Non-text elements, placeholder text |
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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EBB19E
oklch(80.9% 0.073 38.9)
-
Step 400
400
#DF8569
oklch(70.6% 0.118 38)
-
Step 500
500
#D36340
oklch(63% 0.15 37.9)
-
Step 600
600 (this color)
#CA5128
oklch(58.8% 0.163 38.3)
-
Step 700
700
#A4370D
oklch(49% 0.152 38.3)
-
Step 800
800
#852F10
oklch(42.7% 0.125 38.4)
-
Step 900
900
#6B2B16
oklch(37.6% 0.097 38.3)
-
Step 950
950
#3F1A0E
oklch(27% 0.062 38.5)
#CA5128 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) | #736722 | 0.163 |
| Deuteranopia (no green cones) | #918223 | 0.149 |
| Tritanopia (no blue cones) | #DE3349 | 0.073 |
| Achromatopsia (no color) | #777777 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA5128
#CA5128
oklch(58.8% 0.163 38.3)
- #008BA7
#008BA7
oklch(58.8% 0.106 218.7)
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 #CA5128, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.024
- Rusty Orange #CD5909 ΔE 0.027
- Brick Orange #C14A09 ΔE 0.028
- Burnt Orange #C04E01 ΔE 0.029
- Deep Orange #DC4D01 ΔE 0.035
- Terra Cotta #C9643B ΔE 0.038
- Dark Coral #CF524E ΔE 0.040
- Terracotta #CA6641 ΔE 0.043
Use #CA5128 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.