#CA582D
Closest named color: Rusty Orange (#CD5909). oklch(59.8% 0.156 40), rgb(202, 88, 45).
Aa
Black text reads best on this color (4.94:1).
About this color
#CA582D is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.156 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Orange (#CD5909), ΔE 0.020 away. Black text reads best on it, at 4.94:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #CA582D |
| RGB | rgb(202, 88, 45) |
| HSL | hsl(16, 64%, 48%) |
| OKLCH | oklch(59.8% 0.156 40) |
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 #CA582D | 4.24:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #CA582D | 4.94:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #CA582D text on white | 4.24:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #CA582D text on black | 4.94:1 | AA | Lc -33.0 | 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 500.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F3D0C4
oklch(88.4% 0.043 39.8)
-
Step 300
300
#ECB19C
oklch(81% 0.075 40.5)
-
Step 400
400
#E18565
oklch(70.8% 0.122 39.8)
-
Step 500
500 (this color)
#CA582D
oklch(59.8% 0.156 40)
-
Step 600
600
#C1450B
oklch(55.7% 0.17 40)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#872D05
oklch(42.7% 0.131 39.7)
-
Step 900
900
#6D2A10
oklch(37.8% 0.103 40)
-
Step 950
950
#40190C
oklch(26.9% 0.065 38.7)
#CA582D 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) | #786B27 | 0.151 |
| Deuteranopia (no green cones) | #948429 | 0.138 |
| Tritanopia (no blue cones) | #DE3E4F | 0.074 |
| Achromatopsia (no color) | #7B7B7B | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA582D
#CA582D
oklch(59.8% 0.156 40)
- #008EAC
#008EAC
oklch(59.8% 0.109 219.7)
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 #CA582D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Orange #CD5909 ΔE 0.020
- Rust Orange #C45508 ΔE 0.024
- Terra Cotta #C9643B ΔE 0.024
- Terracotta #CA6641 ΔE 0.030
- Terracota #CB6843 ΔE 0.035
- Burnt Orange #C04E01 ΔE 0.035
- Deep Orange #DC4D01 ΔE 0.037
- Brick Orange #C14A09 ΔE 0.037
Use #CA582D 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.