#374BA4#374BA4

#374BA4 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.8% C 0.145 H 270.1°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#374BA4
RGB	rgb(55, 75, 164)
HSL	hsl(229, 50%, 43%)
HSV	hsv(229, 66%, 64%)
CMYK	cmyk(66.5%, 54.3%, 0%, 35.7%)
CIE-LAB	lab(35.05, 22.06, -50.52)
CIE-LCH	lch(35.05, 55.13, 293.59°)
OKLab	oklab(44.84% 0.0001 -0.1451)
OKLCH	oklch(44.84% 0.145 270.1)
XYZ	xyz(10.7902, 8.5237, 36.1914)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BA4 #A49037

analogous

#3781A4 #374BA4 #5937A4

triadic

#374BA4 #A4374B #4BA437

tetradic

#374BA4 #A43781 #A49037 #37A459

square

#374BA4 #A43781 #A49037 #37A459

split-complementary

#374BA4 #A45937 #81A437

monochromatic

#182148 #283676 #374BA4 #5368C5 #8190D5

Accessibility & contrast

On white

7.76

#374BA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#374BA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BA4

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BA4	#FFFFFF	#000000	##FFFFFF
##374BA4	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C58A7

Deuteranopia (green-blind)

#004EA2

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #374ba4;
/* rgb */ color: rgb(55, 75, 164);
/* oklch */ color: oklch(44.8% 0.145 270.1);

Tailwind

colors: {
  custom: {
    50: '#7a7dc0',
    500: '#374ba4',
    950: '#000000',
  },
}

SCSS

$custom: #374ba4;
$custom-light: #7a7dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#374ba4",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 164
  },
  "hsl": {
    "h": 228.991,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44841,
    "c": 0.14514,
    "h": 270.1
  },
  "luminance": 0.08525
}

Semantic roles & 50–950 ramp

primary

#374BA4

secondary

#BEB179

accent

#C04FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374BA4

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

Preview Lab → · Contrast checker → · Palette generator →