#5B88DD#5B88DD

#5B88DD is a light, vivid blue. Relative luminance 0.251; OKLCH L 63.4% C 0.138 H 262.1°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#5B88DD
RGB	rgb(91, 136, 221)
HSL	hsl(219, 66%, 61%)
HSV	hsv(219, 59%, 87%)
CMYK	cmyk(58.8%, 38.5%, 0%, 13.3%)
CIE-LAB	lab(57.12, 10.07, -48.04)
CIE-LCH	lch(57.12, 49.09, 281.84°)
OKLab	oklab(63.36% -0.0189 -0.1364)
OKLCH	oklch(63.36% 0.138 262.1)
XYZ	xyz(26.1652, 25.0507, 71.8490)
Luminance	0.2505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B88DD #DDB05B

analogous

#5BC9DD #5B88DD #6F5BDD

triadic

#5B88DD #DD5B88 #88DD5B

tetradic

#5B88DD #DD5BC9 #DDB05B #5BDD6F

square

#5B88DD #DD5BC9 #DDB05B #5BDD6F

split-complementary

#5B88DD #DD6F5B #C9DD5B

monochromatic

#214C9D #2B64D0 #5B88DD #8EADE8 #C0D2F2

Accessibility & contrast

On white

3.49

#5B88DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#5B88DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B88DD

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B88DD	#FFFFFF	#000000	##000000
##5B88DD	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6490E0

Deuteranopia (green-blind)

#5384DB

Tritanopia (blue-blind)

#009BA8

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #5b88dd;
/* rgb */ color: rgb(91, 136, 221);
/* oklch */ color: oklch(63.4% 0.138 262.1);

Tailwind

colors: {
  custom: {
    50: '#93aae8',
    500: '#5b88dd',
    950: '#000000',
  },
}

SCSS

$custom: #5b88dd;
$custom-light: #93aae8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b88dd",
  "rgb": {
    "r": 91,
    "g": 136,
    "b": 221
  },
  "hsl": {
    "h": 219.231,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.63355,
    "c": 0.13767,
    "h": 262.1
  },
  "luminance": 0.25053
}

Semantic roles & 50–950 ramp

primary

#5B88DD

secondary

#E2D1B1

accent

#8F18CE

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5B88DD

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

Preview Lab → · Contrast checker → · Palette generator →