#D55D09
Closest named color: Rusty Orange (#CD5909). oklch(62% 0.17 46.4), rgb(213, 93, 9).
Aa
Black text reads best on this color (5.39:1).
About this color
#D55D09 is a medium-light, vivid orange. In OKLCH its lightness is 62%, its chroma 0.170 and its hue 46°. 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 5.39:1.
| Hue family | Oranges |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 5.39:1 |
| White text | 3.88:1 |
Values
| HEX | #D55D09 |
| RGB | rgb(213, 93, 9) |
| HSL | hsl(25, 92%, 44%) |
| OKLCH | oklch(62% 0.17 46.4) |
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 #D55D09 | 3.88:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #D55D09 | 5.39:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #D55D09 text on white | 3.88:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #D55D09 text on black | 5.39:1 | AA | Lc -36.1 | 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
#FCF3EF
oklch(97% 0.011 45.7)
-
Step 100
100
#F8E5DD
oklch(93.5% 0.024 44.3)
-
Step 200
200
#F4D0C0
oklch(88.4% 0.046 45.4)
-
Step 300
300
#EEB093
oklch(80.8% 0.083 46.1)
-
Step 400
400
#E38454
oklch(70.6% 0.133 46.6)
-
Step 500
500 (this color)
#D55D09
oklch(62% 0.17 46.4)
-
Step 600
600
#B94E00
oklch(55.5% 0.156 46.2)
-
Step 700
700
#9C4100
oklch(49% 0.137 46.5)
-
Step 800
800
#813400
oklch(42.6% 0.119 46.2)
-
Step 900
900
#6C2B00
oklch(37.6% 0.105 46.7)
-
Step 950
950
#411903
oklch(27% 0.07 46.5)
#D55D09 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) | #807000 | 0.156 |
| Deuteranopia (no green cones) | #9D8B00 | 0.141 |
| Tritanopia (no blue cones) | #EA3F50 | 0.092 |
| Achromatopsia (no color) | #818181 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D55D09
#D55D09
oklch(62% 0.17 46.4)
- #0094BD
#0094BD
oklch(62.1% 0.119 226.2)
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 #D55D09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Orange #CD5909 ΔE 0.018
- Chocolate #D2691E ΔE 0.024
- Rust #CA6702 ΔE 0.028
- Deep Orange #DC4D01 ΔE 0.030
- Terra Cotta #C9643B ΔE 0.033
- Browny Orange #CA6B02 ΔE 0.035
- Terracotta #CA6641 ΔE 0.037
- Terracota #CB6843 ΔE 0.038
Use #D55D09 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.