#B7590A
Closest named color: Burnt Siena (#B75203). oklch(56.9% 0.144 51.4), rgb(183, 89, 10).
Aa
White text reads best on this color (4.72:1).
About this color
#B7590A is a medium-dark, vivid orange. In OKLCH its lightness is 57%, its chroma 0.144 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.015 away. White text reads best on it, at 4.72:1.
| Hue family | Oranges |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #B7590A |
| RGB | rgb(183, 89, 10) |
| HSL | hsl(27, 90%, 38%) |
| OKLCH | oklch(56.9% 0.144 51.4) |
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 #B7590A | 4.72:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #B7590A | 4.44:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #B7590A text on white | 4.72:1 | AA | Lc 72.2 | Content text, not long reading |
| #B7590A text on black | 4.44:1 | AA large text | Lc -29.5 | Dividers and decoration only |
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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EED3C4
oklch(88.5% 0.037 51)
-
Step 300
300
#E3B59B
oklch(80.8% 0.064 50.9)
-
Step 400
400
#D48D63
oklch(70.6% 0.104 51)
-
Step 500
500
#C76F35
oklch(63.1% 0.132 51.3)
-
Step 600
600 (this color)
#B7590A
oklch(56.9% 0.144 51.4)
-
Step 700
700
#974700
oklch(49.2% 0.127 51.6)
-
Step 800
800
#7C3900
oklch(42.6% 0.11 51.5)
-
Step 900
900
#65320E
oklch(37.8% 0.087 51.3)
-
Step 950
950
#3B1E0B
oklch(27.1% 0.054 51.6)
#B7590A 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) | #756600 | 0.123 |
| Deuteranopia (no green cones) | #8B7C05 | 0.113 |
| Tritanopia (no blue cones) | #C9434C | 0.087 |
| Achromatopsia (no color) | #737373 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7590A
#B7590A
oklch(56.9% 0.144 51.4)
- #0082AF
#0082AF
oklch(56.9% 0.116 231.7)
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 #B7590A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.015
- Orangey Brown #B16002 ΔE 0.019
- Copper #B66325 ΔE 0.022
- Rust Orange #C45508 ΔE 0.025
- Burnt Orange #C04E01 ΔE 0.026
- Umber #B26400 ΔE 0.027
- Orange Brown #BE6400 ΔE 0.031
- Raw Umber #A75E09 ΔE 0.031
Use #B7590A 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.