#C65539
Closest named color: Dark Coral (#CF524E). oklch(58.9% 0.151 35.1), rgb(198, 85, 57).
Aa
Black text reads best on this color (4.75:1).
About this color
#C65539 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.151 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Coral (#CF524E), ΔE 0.032 away. Black text reads best on it, at 4.75:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Dark Coral (#CF524E) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #C65539 |
| RGB | rgb(198, 85, 57) |
| HSL | hsl(12, 55%, 50%) |
| OKLCH | oklch(58.9% 0.151 35.1) |
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 #C65539 | 4.41:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #C65539 | 4.75:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #C65539 text on white | 4.41:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #C65539 text on black | 4.75:1 | AA | Lc -31.8 | 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 600.
-
Step 50
50
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E6E1
oklch(93.7% 0.02 37)
-
Step 200
200
#F1D1C9
oklch(88.5% 0.038 34.3)
-
Step 300
300
#E9B2A3
oklch(81% 0.068 35.8)
-
Step 400
400
#DB8772
oklch(70.7% 0.108 34.8)
-
Step 500
500
#CF664C
oklch(63% 0.139 35)
-
Step 600
600 (this color)
#C65539
oklch(58.9% 0.151 35.1)
-
Step 700
700
#A03B21
oklch(49% 0.14 35.4)
-
Step 800
800
#82321E
oklch(42.7% 0.115 35.2)
-
Step 900
900
#692D1E
oklch(37.7% 0.09 35.2)
-
Step 950
950
#3E1B12
oklch(27.1% 0.057 35.5)
#C65539 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) | #746936 | 0.151 |
| Deuteranopia (no green cones) | #8F8136 | 0.139 |
| Tritanopia (no blue cones) | #D93D4F | 0.063 |
| Achromatopsia (no color) | #787878 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C65539
#C65539
oklch(58.9% 0.151 35.1)
- #008CA4
#008CA4
oklch(58.9% 0.104 215.5)
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 #C65539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Coral #CF524E ΔE 0.032
- Rust Orange #C45508 ΔE 0.032
- Terra Cotta #C9643B ΔE 0.034
- Brick Orange #C14A09 ΔE 0.036
- Rusty Orange #CD5909 ΔE 0.036
- Burnt Orange #C04E01 ΔE 0.037
- Terracotta #CA6641 ΔE 0.038
- Terracota #CB6843 ΔE 0.042
Use #C65539 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.