#374AA4#374AA4

#374AA4 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.146 H 270.4°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#374AA4
RGB	rgb(55, 74, 164)
HSL	hsl(230, 50%, 43%)
HSV	hsv(230, 66%, 64%)
CMYK	cmyk(66.5%, 54.9%, 0%, 35.7%)
CIE-LAB	lab(34.78, 22.72, -50.96)
CIE-LCH	lch(34.78, 55.79, 294.03°)
OKLab	oklab(44.64% 0.0011 -0.1464)
OKLCH	oklch(44.64% 0.146 270.4)
XYZ	xyz(10.7229, 8.3891, 36.1689)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374AA4 #A49137

analogous

#3781A4 #374AA4 #5A37A4

triadic

#374AA4 #A4374A #4AA437

tetradic

#374AA4 #A43781 #A49137 #37A45A

square

#374AA4 #A43781 #A49137 #37A45A

split-complementary

#374AA4 #A45A37 #81A437

monochromatic

#182148 #283576 #374AA4 #5367C5 #818FD5

Accessibility & contrast

On white

7.84

#374AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#374AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374AA4

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374AA4	#FFFFFF	#000000	##FFFFFF
##374AA4	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0657A7

Deuteranopia (green-blind)

#004DA2

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #374aa4;
/* rgb */ color: rgb(55, 74, 164);
/* oklch */ color: oklch(44.6% 0.146 270.4);

Tailwind

colors: {
  custom: {
    50: '#7a7cc0',
    500: '#374aa4',
    950: '#000000',
  },
}

SCSS

$custom: #374aa4;
$custom-light: #7a7cc0;
$custom-dark: #000000;

JSON

{
  "hex": "#374aa4",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 164
  },
  "hsl": {
    "h": 229.541,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44638,
    "c": 0.14644,
    "h": 270.4
  },
  "luminance": 0.0839
}

Semantic roles & 50–950 ramp

primary

#374AA4

secondary

#BEB279

accent

#C14FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374AA4

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

Preview Lab → · Contrast checker → · Palette generator →