#EFB527
Closest named color: Macaroni And Cheese (#EFB435). oklch(80.5% 0.156 83.7), rgb(239, 181, 39).
Aa
Black text reads best on this color (11.30:1).
About this color
#EFB527 is a light, vivid orange. In OKLCH its lightness is 81%, its chroma 0.156 and its hue 84°. Its hue sits on the warm side of the wheel. The nearest named color is Macaroni And Cheese (#EFB435), ΔE 0.008 away. Black text reads best on it, at 11.30:1.
| Hue family | Oranges |
| Lightness | light (81%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Macaroni And Cheese (#EFB435) |
| Black text | 11.30:1 |
| White text | 1.85:1 |
Values
| HEX | #EFB527 |
| RGB | rgb(239, 181, 39) |
| HSL | hsl(43, 86%, 55%) |
| OKLCH | oklch(80.5% 0.156 83.7) |
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 #EFB527 | 1.85:1 | Fails | Lc -38.9 | Non-text elements, placeholder text |
| Black text on #EFB527 | 11.30:1 | AAA | Lc 69.1 | Content text, not long reading |
| #EFB527 text on white | 1.85:1 | Fails | Lc 34.8 | Non-text elements, placeholder text |
| #EFB527 text on black | 11.30:1 | AAA | Lc -67.8 | 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
#FCF5E6
oklch(97.2% 0.021 85.9)
-
Step 100
100
#F8E8C8
oklch(93.6% 0.045 84.6)
-
Step 200
200
#F5D597
oklch(88.6% 0.087 83.5)
-
Step 300
300 (this color)
#EFB527
oklch(80.5% 0.156 83.7)
-
Step 400
400
#CB9700
oklch(70.7% 0.145 83.8)
-
Step 500
500
#AE8100
oklch(63% 0.129 83.9)
-
Step 600
600
#936C00
oklch(55.6% 0.114 83.5)
-
Step 700
700
#7C5B00
oklch(49.2% 0.101 83.9)
-
Step 800
800
#664A00
oklch(42.8% 0.088 83.6)
-
Step 900
900
#553D00
oklch(37.7% 0.077 83.5)
-
Step 950
950
#332300
oklch(26.8% 0.055 83)
#EFB527 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) | #CDB500 | 0.056 |
| Deuteranopia (no green cones) | #DBC430 | 0.045 |
| Tritanopia (no blue cones) | #FFA39B | 0.136 |
| Achromatopsia (no color) | #BEBEBE | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFB527
#EFB527
oklch(80.5% 0.156 83.7)
- #9FBFFF
#9FBFFF
oklch(80.5% 0.098 263.8)
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 #EFB527, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Macaroni And Cheese #EFB435 ΔE 0.008
- Yellow Orange #FCB001 ΔE 0.022
- Squash #F2AB15 ΔE 0.023
- Orangey Yellow #FDB915 ΔE 0.026
- Golden Rod #F9BC08 ΔE 0.026
- Orange Yellow #FFAD01 ΔE 0.029
- Golden #F5BF03 ΔE 0.030
- Butterscotch #FDB147 ΔE 0.035
Use #EFB527 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.