#C75A2A
Closest named color: Rusty Orange (#CD5909). oklch(59.6% 0.152 42.3), rgb(199, 90, 42).
Aa
Black text reads best on this color (4.92:1).
About this color
#C75A2A is a medium-dark, vivid orange. In OKLCH its lightness is 60%, its chroma 0.152 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Orange (#CD5909), ΔE 0.018 away. Black text reads best on it, at 4.92:1.
| Hue family | Oranges |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #C75A2A |
| RGB | rgb(199, 90, 42) |
| HSL | hsl(18, 65%, 47%) |
| OKLCH | oklch(59.6% 0.152 42.3) |
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 #C75A2A | 4.26:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #C75A2A | 4.92:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #C75A2A text on white | 4.26:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #C75A2A text on black | 4.92:1 | AA | Lc -32.8 | 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
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F2D1C4
oklch(88.5% 0.041 42.7)
-
Step 300
300
#EBB19B
oklch(80.8% 0.075 41.7)
-
Step 400
400
#DE8663
oklch(70.6% 0.119 42.2)
-
Step 500
500 (this color)
#C75A2A
oklch(59.6% 0.152 42.3)
-
Step 600
600
#BE4804
oklch(55.5% 0.165 42.3)
-
Step 700
700
#A23B00
oklch(49.2% 0.148 42.2)
-
Step 800
800
#853001
oklch(42.7% 0.127 42.5)
-
Step 900
900
#6B2C0F
oklch(37.7% 0.099 42.6)
-
Step 950
950
#3F1A0B
oklch(26.9% 0.063 41.6)
#C75A2A 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) | #796B23 | 0.144 |
| Deuteranopia (no green cones) | #938427 | 0.132 |
| Tritanopia (no blue cones) | #DB4250 | 0.076 |
| Achromatopsia (no color) | #7A7A7A | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C75A2A
#C75A2A
oklch(59.6% 0.152 42.3)
- #008DAE
#008DAE
oklch(59.6% 0.11 222)
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 #C75A2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Orange #CD5909 ΔE 0.018
- Rust Orange #C45508 ΔE 0.019
- Terra Cotta #C9643B ΔE 0.023
- Terracotta #CA6641 ΔE 0.029
- Burnt Orange #C04E01 ΔE 0.032
- Terracota #CB6843 ΔE 0.034
- Brick Orange #C14A09 ΔE 0.036
- Copper #B66325 ΔE 0.036
Use #C75A2A 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.