#F39F33
Closest named color: Gamboge (#EE9B00). oklch(77% 0.152 67.7), rgb(243, 159, 51).
Aa
Black text reads best on this color (9.81:1).
About this color
#F39F33 is a medium-light, vivid orange. In OKLCH its lightness is 77%, its chroma 0.152 and its hue 68°. Its hue sits on the warm side of the wheel. The nearest named color is Gamboge (#EE9B00), ΔE 0.021 away. Black text reads best on it, at 9.81:1.
| Hue family | Oranges |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Gamboge (#EE9B00) |
| Black text | 9.81:1 |
| White text | 2.13:1 |
Values
| HEX | #F39F33 |
| RGB | rgb(243, 159, 51) |
| HSL | hsl(34, 89%, 58%) |
| OKLCH | oklch(77% 0.152 67.7) |
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 #F39F33 | 2.13:1 | Fails | Lc -46.3 | Large or bold text, headings |
| Black text on #F39F33 | 9.81:1 | AAA | Lc 62.3 | Content text, not long reading |
| #F39F33 text on white | 2.13:1 | Fails | Lc 41.7 | Non-text elements, placeholder text |
| #F39F33 text on black | 9.81:1 | AAA | Lc -60.6 | Content text, not long reading |
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
#FFF3E8
oklch(97.1% 0.02 65.1)
-
Step 100
100
#FEE5CB
oklch(93.6% 0.044 68.3)
-
Step 200
200
#FFCF9D
oklch(88.5% 0.084 67.5)
-
Step 300
300 (this color)
#F39F33
oklch(77% 0.152 67.7)
-
Step 400
400
#DF8B00
oklch(70.8% 0.155 67.9)
-
Step 500
500
#C07600
oklch(63.1% 0.139 67.3)
-
Step 600
600
#A16300
oklch(55.5% 0.122 67.9)
-
Step 700
700
#885300
oklch(49.1% 0.108 68.1)
-
Step 800
800
#704300
oklch(42.6% 0.094 67.6)
-
Step 900
900
#5E3800
oklch(37.8% 0.083 68.3)
-
Step 950
950
#392000
oklch(27% 0.059 68.3)
#F39F33 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) | #BBA520 | 0.094 |
| Deuteranopia (no green cones) | #CEB936 | 0.083 |
| Tritanopia (no blue cones) | #FF8B8A | 0.116 |
| Achromatopsia (no color) | #B1B1B1 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F39F33
#F39F33
oklch(77% 0.152 67.7)
- #70BBFF
#70BBFF
oklch(77.1% 0.123 247.5)
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 #F39F33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gamboge #EE9B00 ΔE 0.021
- Mango #FFA62B ΔE 0.028
- Tangerine #FF9408 ΔE 0.029
- Orange #FFA500 ΔE 0.031
- Light Orange #FDAA48 ΔE 0.033
- Sandy Brown #F4A460 ΔE 0.035
- Squash #F2AB15 ΔE 0.035
- Pale Orange #FFA756 ΔE 0.037
Use #F39F33 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.