#539EFA
Closest named color: Cornflower Blue (#6495ED). oklch(69.3% 0.155 254.8), rgb(83, 158, 250).
Aa
Black text reads best on this color (7.63:1).
About this color
#539EFA is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.155 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.029 away. Black text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.63:1 |
| White text | 2.74:1 |
Values
| HEX | #539EFA |
| RGB | rgb(83, 158, 250) |
| HSL | hsl(213, 94%, 65%) |
| OKLCH | oklch(69.3% 0.155 254.8) |
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 #539EFA | 2.74:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #539EFA | 7.63:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #539EFA text on white | 2.74:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #539EFA text on black | 7.63:1 | AAA | Lc -49.0 | 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 400.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C2DCFD
oklch(88.6% 0.054 254.5)
-
Step 300
300
#96C4FF
oklch(81% 0.097 254.9)
-
Step 400
400 (this color)
#539EFA
oklch(69.3% 0.155 254.8)
-
Step 500
500
#1587FD
oklch(63% 0.199 254.9)
-
Step 600
600
#0071DA
oklch(55.6% 0.182 254.8)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D99
oklch(42.7% 0.14 255)
-
Step 900
900
#004081
oklch(37.7% 0.124 254.9)
-
Step 950
950
#04264D
oklch(27% 0.082 254.9)
#539EFA 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) | #75A4FE | 0.039 |
| Deuteranopia (no green cones) | #5C95F8 | 0.023 |
| Tritanopia (no blue cones) | #00B3C0 | 0.122 |
| Achromatopsia (no color) | #9C9C9C | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #539EFA
#539EFA
oklch(69.3% 0.155 254.8)
- #D18D00
#D18D00
oklch(69.5% 0.147 74.8)
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 #539EFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.029
- Chefchaouen Blue #4895EF ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.053
- Dodger Blue #1E90FF ΔE 0.054
- Soft Blue #6488EA ΔE 0.058
- Periwinkle Blue #8F99FB ΔE 0.065
- Perrywinkle #8F8CE7 ΔE 0.076
- Lavender Blue #8B88F8 ΔE 0.077
Use #539EFA 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.