#375AB1#375AB1

#375AB1 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.144 H 265.0°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#375AB1
RGB	rgb(55, 90, 177)
HSL	hsl(223, 53%, 45%)
HSV	hsv(223, 69%, 69%)
CMYK	cmyk(68.9%, 49.2%, 0%, 30.6%)
CIE-LAB	lab(40.08, 16.99, -50.13)
CIE-LCH	lch(40.08, 52.93, 288.72°)
OKLab	oklab(48.94% -0.0125 -0.1438)
OKLCH	oklch(48.94% 0.144 265)
XYZ	xyz(13.1647, 11.2976, 43.0733)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AB1 #B18E37

analogous

#3797B1 #375AB1 #5137B1

triadic

#375AB1 #B1375A #5AB137

tetradic

#375AB1 #B13797 #B18E37 #37B151

square

#375AB1 #B13797 #B18E37 #37B151

split-complementary

#375AB1 #B15137 #97B137

monochromatic

#1A2B54 #284282 #375AB1 #5A7ACC #88A0DA

Accessibility & contrast

On white

6.44

#375AB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#375AB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AB1

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AB1	#FFFFFF	#000000	##FFFFFF
##375AB1	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A64B4

Deuteranopia (green-blind)

#0659AF

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #375ab1;
/* rgb */ color: rgb(55, 90, 177);
/* oklch */ color: oklch(48.9% 0.144 265.0);

Tailwind

colors: {
  custom: {
    50: '#7c88c9',
    500: '#375ab1',
    950: '#000000',
  },
}

SCSS

$custom: #375ab1;
$custom-light: #7c88c9;
$custom-dark: #000000;

JSON

{
  "hex": "#375ab1",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 177
  },
  "hsl": {
    "h": 222.787,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48938,
    "c": 0.14431,
    "h": 265
  },
  "luminance": 0.11299
}

Semantic roles & 50–950 ramp

primary

#375AB1

secondary

#C4B180

accent

#B34CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375AB1

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

Preview Lab → · Contrast checker → · Palette generator →