#539EF2
Closest named color: Cornflower Blue (#6495ED). oklch(68.9% 0.145 252.9), rgb(83, 158, 242).
Aa
Black text reads best on this color (7.54:1).
About this color
#539EF2 is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.145 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.026 away. Black text reads best on it, at 7.54:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.54:1 |
| White text | 2.78:1 |
Values
| HEX | #539EF2 |
| RGB | rgb(83, 158, 242) |
| HSL | hsl(212, 86%, 64%) |
| OKLCH | oklch(68.9% 0.145 252.9) |
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 #539EF2 | 2.78:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #539EF2 | 7.54:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #539EF2 text on white | 2.78:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #539EF2 text on black | 7.54:1 | AAA | Lc -48.5 | 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
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFA
oklch(88.5% 0.05 252.1)
-
Step 300
300
#97C4FA
oklch(80.8% 0.091 253.4)
-
Step 400
400 (this color)
#539EF2
oklch(68.9% 0.145 252.9)
-
Step 500
500
#178AF5
oklch(63.2% 0.185 252.9)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0060B3
oklch(49% 0.152 253.2)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950
#04274A
oklch(27.1% 0.076 252.4)
#539EF2 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) | #79A3F5 | 0.042 |
| Deuteranopia (no green cones) | #6394F0 | 0.028 |
| Tritanopia (no blue cones) | #00B2BD | 0.115 |
| Achromatopsia (no color) | #9B9B9B | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #539EF2
#539EF2
oklch(68.9% 0.145 252.9)
- #D08A08
#D08A08
oklch(68.8% 0.145 73)
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 #539EF2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.027
- Dark Sky Blue #448EE4 ΔE 0.049
- Soft Blue #6488EA ΔE 0.057
- Dodger Blue #1E90FF ΔE 0.058
- Periwinkle Blue #8F99FB ΔE 0.068
- Perrywinkle #8F8CE7 ΔE 0.075
- Lavender Blue #8B88F8 ΔE 0.080
Use #539EF2 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.