#FB9539
Closest named color: Tangerine (#FF9408). oklch(76.2% 0.159 58.2), rgb(251, 149, 57).
Aa
Black text reads best on this color (9.45:1).
About this color
#FB9539 is a medium-light, vivid orange. In OKLCH its lightness is 76%, its chroma 0.159 and its hue 58°. Its hue sits on the warm side of the wheel. The nearest named color is Tangerine (#FF9408), ΔE 0.019 away. Black text reads best on it, at 9.45:1.
| Hue family | Oranges |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Tangerine (#FF9408) |
| Black text | 9.45:1 |
| White text | 2.21:1 |
Values
| HEX | #FB9539 |
| RGB | rgb(251, 149, 57) |
| HSL | hsl(28, 96%, 60%) |
| OKLCH | oklch(76.2% 0.159 58.2) |
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 #FB9539 | 2.21:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #FB9539 | 9.45:1 | AAA | Lc 60.6 | Content text, not long reading |
| #FB9539 text on white | 2.21:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #FB9539 text on black | 9.45:1 | AAA | Lc -58.8 | Large or bold text, headings |
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 300.
-
Step 50
50
#FFF3EA
oklch(97.1% 0.018 59.5)
-
Step 100
100
#FFE4D1
oklch(93.6% 0.039 57.4)
-
Step 200
200
#FFCEA9
oklch(88.5% 0.074 58.7)
-
Step 300
300 (this color)
#FB9539
oklch(76.2% 0.159 58.2)
-
Step 400
400
#EC8100
oklch(70.8% 0.169 58.2)
-
Step 500
500
#CB6E00
oklch(63.2% 0.151 58.2)
-
Step 600
600
#AB5C00
oklch(55.6% 0.133 58.3)
-
Step 700
700
#904D00
oklch(49.1% 0.117 58.7)
-
Step 800
800
#773E00
oklch(42.7% 0.102 58.2)
-
Step 900
900
#643300
oklch(37.7% 0.09 58)
-
Step 950
950
#3D1D00
oklch(27% 0.064 58.4)
#FB9539 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) | #B4A02C | 0.120 |
| Deuteranopia (no green cones) | #CCB739 | 0.108 |
| Tritanopia (no blue cones) | #FF7E82 | 0.106 |
| Achromatopsia (no color) | #AEAEAE | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FB9539
#FB9539
oklch(76.2% 0.159 58.2)
- #4CBDFF
#4CBDFF
oklch(76.2% 0.138 238.3)
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 #FB9539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tangerine #FF9408 ΔE 0.019
- Pastel Orange #FF964F ΔE 0.019
- Dark Orange #FF8C00 ΔE 0.023
- Faded Orange #F0944D ΔE 0.024
- Gamboge #EE9B00 ΔE 0.038
- Sandy Brown #F4A460 ΔE 0.039
- Pale Orange #FFA756 ΔE 0.043
- Mango #FFA62B ΔE 0.044
Use #FB9539 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.