#5188E5#5188E5

#5188E5 is a light, vivid blue. Relative luminance 0.250; OKLCH L 63.3% C 0.152 H 260.3°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#5188E5
RGB	rgb(81, 136, 229)
HSL	hsl(218, 74%, 61%)
HSV	hsv(218, 65%, 90%)
CMYK	cmyk(64.6%, 40.6%, 0%, 10.2%)
CIE-LAB	lab(57.09, 10.93, -52.60)
CIE-LCH	lch(57.09, 53.72, 281.74°)
OKLab	oklab(63.34% -0.0257 -0.1499)
OKLCH	oklch(63.34% 0.152 260.3)
XYZ	xyz(26.3353, 25.0123, 77.5535)
Luminance	0.2501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188E5 #E5AE51

analogous

#51D2E5 #5188E5 #6451E5

triadic

#5188E5 #E55188 #88E551

tetradic

#5188E5 #E551D2 #E5AE51 #51E564

square

#5188E5 #E551D2 #E5AE51 #51E564

split-complementary

#5188E5 #E56451 #D2E551

monochromatic

#184CA3 #2065D8 #5188E5 #86ACED #BBD1F5

Accessibility & contrast

On white

3.50

#5188E5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.00

#5188E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188E5

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188E5	#FFFFFF	#000000	##000000
##5188E5	1.00	3.50	6.00	6.00
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.00	21.00	1.00	1.00
##000000	6.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E90E9

Deuteranopia (green-blind)

#4783E3

Tritanopia (blue-blind)

#009DAB

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5188e5;
/* rgb */ color: rgb(81, 136, 229);
/* oklch */ color: oklch(63.3% 0.152 260.3);

Tailwind

colors: {
  custom: {
    50: '#90aaee',
    500: '#5188e5',
    950: '#000000',
  },
}

SCSS

$custom: #5188e5;
$custom-light: #90aaee;
$custom-dark: #000000;

JSON

{
  "hex": "#5188e5",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 229
  },
  "hsl": {
    "h": 217.703,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.63339,
    "c": 0.15207,
    "h": 260.3
  },
  "luminance": 0.25015
}

Semantic roles & 50–950 ramp

primary

#5188E5

secondary

#E5D0AD

accent

#8C0FD6

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5188E5

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

Preview Lab → · Contrast checker → · Palette generator →