#375BD0#375BD0

#375BD0 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.5% C 0.185 H 266.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#375BD0
RGB	rgb(55, 91, 208)
HSL	hsl(226, 62%, 52%)
HSV	hsv(226, 74%, 82%)
CMYK	cmyk(73.6%, 56.2%, 0%, 18.4%)
CIE-LAB	lab(42.53, 27.74, -64.19)
CIE-LCH	lch(42.53, 69.93, 293.37°)
OKLab	oklab(51.49% -0.0106 -0.1851)
OKLCH	oklch(51.49% 0.185 266.7)
XYZ	xyz(16.6978, 12.8467, 61.2619)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BD0 #D0AC37

analogous

#37A8D0 #375BD0 #6037D0

triadic

#375BD0 #D0375B #5BD037

tetradic

#375BD0 #D037A8 #D0AC37 #37D060

square

#375BD0 #D037A8 #D0AC37 #37D060

split-complementary

#375BD0 #D06037 #A8D037

monochromatic

#1B2F72 #2644A3 #375BD0 #6984DC #9AACE7

Accessibility & contrast

On white

5.88

#375BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#375BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BD0

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BD0	#FFFFFF	#000000	##FFFFFF
##375BD0	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD4

Deuteranopia (green-blind)

#005ECE

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #375bd0;
/* rgb */ color: rgb(55, 91, 208);
/* oklch */ color: oklch(51.5% 0.185 266.7);

Tailwind

colors: {
  custom: {
    50: '#8388df',
    500: '#375bd0',
    950: '#000000',
  },
}

SCSS

$custom: #375bd0;
$custom-light: #8388df;
$custom-dark: #000000;

JSON

{
  "hex": "#375bd0",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 208
  },
  "hsl": {
    "h": 225.882,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51488,
    "c": 0.18542,
    "h": 266.7
  },
  "luminance": 0.12848
}

Semantic roles & 50–950 ramp

primary

#375BD0

secondary

#D3C390

accent

#BF43E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #375BD0

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

Preview Lab → · Contrast checker → · Palette generator →