#538CEE#538CEE

#538CEE is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.8% C 0.159 H 260.5°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#538CEE
RGB	rgb(83, 140, 238)
HSL	hsl(218, 82%, 63%)
HSV	hsv(218, 65%, 93%)
CMYK	cmyk(65.1%, 41.2%, 0%, 6.7%)
CIE-LAB	lab(58.76, 11.93, -54.93)
CIE-LCH	lch(58.76, 56.22, 282.26°)
OKLab	oklab(64.81% -0.0262 -0.1566)
OKLCH	oklch(64.81% 0.159 260.5)
XYZ	xyz(28.3725, 26.7655, 84.5434)
Luminance	0.2677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538CEE #EEB553

analogous

#53DAEE #538CEE #6753EE

triadic

#538CEE #EE538C #8CEE53

tetradic

#538CEE #EE53DA #EEB553 #53EE67

square

#538CEE #EE53DA #EEB553 #53EE67

split-complementary

#538CEE #EE6753 #DAEE53

monochromatic

#124EB5 #1B67E8 #538CEE #8BB1F4 #C2D6F9

Accessibility & contrast

On white

3.31

#538CEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#538CEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538CEE

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538CEE	#FFFFFF	#000000	##000000
##538CEE	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F95F2

Deuteranopia (green-blind)

#4787EC

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #538cee;
/* rgb */ color: rgb(83, 140, 238);
/* oklch */ color: oklch(64.8% 0.159 260.5);

Tailwind

colors: {
  custom: {
    50: '#92adf4',
    500: '#538cee',
    950: '#000000',
  },
}

SCSS

$custom: #538cee;
$custom-light: #92adf4;
$custom-dark: #000000;

JSON

{
  "hex": "#538cee",
  "rgb": {
    "r": 83,
    "g": 140,
    "b": 238
  },
  "hsl": {
    "h": 217.935,
    "s": 82.011,
    "l": 62.941
  },
  "oklch": {
    "l": 0.64813,
    "c": 0.15881,
    "h": 260.5
  },
  "luminance": 0.26768
}

Semantic roles & 50–950 ramp

primary

#538CEE

secondary

#EAD6B2

accent

#8F07DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #538CEE

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →