#375BB0#375BB0

#375BB0 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.142 H 264.5°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#375BB0
RGB	rgb(55, 91, 176)
HSL	hsl(222, 52%, 45%)
HSV	hsv(222, 69%, 69%)
CMYK	cmyk(68.8%, 48.3%, 0%, 31%)
CIE-LAB	lab(40.29, 15.97, -49.20)
CIE-LCH	lch(40.29, 51.73, 287.98°)
OKLab	oklab(49.08% -0.0136 -0.141)
OKLCH	oklch(49.08% 0.142 264.5)
XYZ	xyz(13.1504, 11.4277, 42.5786)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BB0 #B08C37

analogous

#3797B0 #375BB0 #5037B0

triadic

#375BB0 #B0375B #5BB037

tetradic

#375BB0 #B03797 #B08C37 #37B050

square

#375BB0 #B03797 #B08C37 #37B050

split-complementary

#375BB0 #B05037 #97B037

monochromatic

#1A2B53 #284381 #375BB0 #597BCB #88A0DA

Accessibility & contrast

On white

6.39

#375BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#375BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BB0

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BB0	#FFFFFF	#000000	##FFFFFF
##375BB0	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E65B3

Deuteranopia (green-blind)

#105AAE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #375bb0;
/* rgb */ color: rgb(55, 91, 176);
/* oklch */ color: oklch(49.1% 0.142 264.5);

Tailwind

colors: {
  custom: {
    50: '#7c88c8',
    500: '#375bb0',
    950: '#000000',
  },
}

SCSS

$custom: #375bb0;
$custom-light: #7c88c8;
$custom-dark: #000000;

JSON

{
  "hex": "#375bb0",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 222.149,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.49081,
    "c": 0.14165,
    "h": 264.5
  },
  "luminance": 0.11429
}

Semantic roles & 50–950 ramp

primary

#375BB0

secondary

#C4AF7F

accent

#B14CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375BB0

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

Preview Lab → · Contrast checker → · Palette generator →