#375BC9#375BC9

#375BC9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.9% C 0.176 H 266.4°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#375BC9
RGB	rgb(55, 91, 201)
HSL	hsl(225, 57%, 50%)
HSV	hsv(225, 73%, 79%)
CMYK	cmyk(72.6%, 54.7%, 0%, 21.2%)
CIE-LAB	lab(42.02, 25.18, -61.00)
CIE-LCH	lch(42.02, 65.99, 292.43°)
OKLab	oklab(50.94% -0.011 -0.1757)
OKLCH	oklch(50.94% 0.176 266.4)
XYZ	xyz(15.8556, 12.5098, 56.8260)
Luminance	0.1251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BC9 #C9A537

analogous

#37A4C9 #375BC9 #5C37C9

triadic

#375BC9 #C9375B #5BC937

tetradic

#375BC9 #C937A4 #C9A537 #37C95C

square

#375BC9 #C937A4 #C9A537 #37C95C

split-complementary

#375BC9 #C95C37 #A4C937

monochromatic

#1C2F69 #294599 #375BC9 #6783D6 #97AAE3

Accessibility & contrast

On white

6.00

#375BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#375BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BC9

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BC9	#FFFFFF	#000000	##FFFFFF
##375BC9	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACD

Deuteranopia (green-blind)

#005DC7

Tritanopia (blue-blind)

#007689

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #375bc9;
/* rgb */ color: rgb(55, 91, 201);
/* oklch */ color: oklch(50.9% 0.176 266.4);

Tailwind

colors: {
  custom: {
    50: '#8188da',
    500: '#375bc9',
    950: '#000000',
  },
}

SCSS

$custom: #375bc9;
$custom-light: #8188da;
$custom-dark: #000000;

JSON

{
  "hex": "#375bc9",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 201
  },
  "hsl": {
    "h": 225.205,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50937,
    "c": 0.17606,
    "h": 266.4
  },
  "luminance": 0.12511
}

Semantic roles & 50–950 ramp

primary

#375BC9

secondary

#CFBE8D

accent

#BB47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #375BC9

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

Preview Lab → · Contrast checker → · Palette generator →