#5B91DF#5B91DF

#5B91DF is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.4% C 0.131 H 257.6°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#5B91DF
RGB	rgb(91, 145, 223)
HSL	hsl(215, 67%, 62%)
HSV	hsv(215, 59%, 87%)
CMYK	cmyk(59.2%, 35%, 0%, 12.5%)
CIE-LAB	lab(59.71, 5.39, -45.07)
CIE-LCH	lch(59.71, 45.39, 276.82°)
OKLab	oklab(65.4% -0.028 -0.1276)
OKLCH	oklch(65.4% 0.131 257.6)
XYZ	xyz(27.7544, 27.8002, 73.7011)
Luminance	0.2780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91DF #DFA95B

analogous

#5BD3DF #5B91DF #675BDF

triadic

#5B91DF #DF5B91 #91DF5B

tetradic

#5B91DF #DF5BD3 #DFA95B #5BDF67

square

#5B91DF #DF5BD3 #DFA95B #5BDF67

split-complementary

#5B91DF #DF675B #D3DF5B

monochromatic

#1F54A0 #296FD4 #5B91DF #8EB3E9 #C1D6F3

Accessibility & contrast

On white

3.20

#5B91DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#5B91DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91DF

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91DF	#FFFFFF	#000000	##000000
##5B91DF	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7097E2

Deuteranopia (green-blind)

#5F8ADD

Tritanopia (blue-blind)

#00A3AD

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b91df;
/* rgb */ color: rgb(91, 145, 223);
/* oklch */ color: oklch(65.4% 0.131 257.6);

Tailwind

colors: {
  custom: {
    50: '#93b0e9',
    500: '#5b91df',
    950: '#000000',
  },
}

SCSS

$custom: #5b91df;
$custom-light: #93b0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91df",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 223
  },
  "hsl": {
    "h": 215.455,
    "s": 67.347,
    "l": 61.569
  },
  "oklch": {
    "l": 0.65395,
    "c": 0.13064,
    "h": 257.6
  },
  "luminance": 0.27803
}

Semantic roles & 50–950 ramp

primary

#5B91DF

secondary

#E3CFB2

accent

#8416CF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5B91DF

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

Preview Lab → · Contrast checker → · Palette generator →