#FFD21F
Closest named color: Gold (#FFD700). oklch(87.7% 0.174 92.5), rgb(255, 210, 31).
Aa
Black text reads best on this color (14.49:1).
About this color
#FFD21F is a light, vivid yellow. In OKLCH its lightness is 88%, its chroma 0.174 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Gold (#FFD700), ΔE 0.015 away. Black text reads best on it, at 14.49:1.
| Hue family | Yellows |
| Lightness | light (88%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Gold (#FFD700) |
| Black text | 14.49:1 |
| White text | 1.44:1 |
Values
| HEX | #FFD21F |
| RGB | rgb(255, 210, 31) |
| HSL | hsl(48, 100%, 56%) |
| OKLCH | oklch(87.7% 0.174 92.5) |
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 #FFD21F | 1.44:1 | Fails | Lc -24.1 | Dividers and decoration only |
| Black text on #FFD21F | 14.49:1 | AAA | Lc 82.5 | Fine for body text |
| #FFD21F text on white | 1.44:1 | Fails | Lc 21.2 | Dividers and decoration only |
| #FFD21F text on black | 14.49:1 | AAA | Lc -82.2 | Fine for body 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 200.
-
Step 50
50
#FCF5DF
oklch(97% 0.03 92.3)
-
Step 100
100
#F9EAB9
oklch(93.7% 0.065 93.1)
-
Step 200
200 (this color)
#FFD21F
oklch(87.7% 0.174 92.5)
-
Step 300
300
#E6BC00
oklch(80.9% 0.166 92.5)
-
Step 400
400
#C09D00
oklch(70.7% 0.145 92.8)
-
Step 500
500
#A58600
oklch(63.1% 0.129 92.4)
-
Step 600
600
#8B7000
oklch(55.5% 0.114 92)
-
Step 700
700
#755E00
oklch(49.1% 0.1 92.1)
-
Step 800
800
#604D00
oklch(42.7% 0.087 92.5)
-
Step 900
900
#504000
oklch(37.8% 0.077 92.8)
-
Step 950
950
#302500
oklch(26.9% 0.055 91.9)
#FFD21F 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) | #EBCF00 | 0.033 |
| Deuteranopia (no green cones) | #F6DC30 | 0.026 |
| Tritanopia (no blue cones) | #FFBFB4 | 0.156 |
| Achromatopsia (no color) | #D6D6D6 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FFD21F
#FFD21F
oklch(87.7% 0.174 92.5)
- #C9D5FF
#C9D5FF
oklch(87.8% 0.06 272.6)
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 #FFD21F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gold #FFD700 ΔE 0.015
- Sunflower Yellow #FFDA03 ΔE 0.022
- Golden Yellow #FEC615 ΔE 0.029
- Sunflower #FFC512 ΔE 0.031
- Maize #F4D054 ΔE 0.031
- Sun Yellow #FFDF22 ΔE 0.032
- Dandelion #FEDF08 ΔE 0.034
- Light Mustard #F7D560 ΔE 0.035
Use #FFD21F 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.