#374F97#374F97

#374F97 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.7% C 0.121 H 267.5°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#374F97
RGB	rgb(55, 79, 151)
HSL	hsl(225, 47%, 40%)
HSV	hsv(225, 64%, 59%)
CMYK	cmyk(63.6%, 47.7%, 0%, 40.8%)
CIE-LAB	lab(35.28, 14.67, -42.33)
CIE-LCH	lch(35.28, 44.80, 289.11°)
OKLab	oklab(44.73% -0.0053 -0.121)
OKLCH	oklch(44.73% 0.121 267.5)
XYZ	xyz(9.9555, 8.6377, 30.4148)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F97 #977F37

analogous

#377F97 #374F97 #4F3797

triadic

#374F97 #97374F #4F9737

tetradic

#374F97 #97377F #977F37 #37974F

square

#374F97 #97377F #977F37 #37974F

split-complementary

#374F97 #974F37 #7F9737

monochromatic

#16203D #27386A #374F97 #4D69BE #7A8FCF

Accessibility & contrast

On white

7.70

#374F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#374F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F97

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F97	#FFFFFF	#000000	##FFFFFF
##374F97	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C589A

Deuteranopia (green-blind)

#1B4F95

Tritanopia (blue-blind)

#005F6B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #374f97;
/* rgb */ color: rgb(55, 79, 151);
/* oklch */ color: oklch(44.7% 0.121 267.5);

Tailwind

colors: {
  custom: {
    50: '#777fb6',
    500: '#374f97',
    950: '#000000',
  },
}

SCSS

$custom: #374f97;
$custom-light: #777fb6;
$custom-dark: #000000;

JSON

{
  "hex": "#374f97",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 151
  },
  "hsl": {
    "h": 225,
    "s": 46.602,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44729,
    "c": 0.1211,
    "h": 267.5
  },
  "luminance": 0.08639
}

Semantic roles & 50–950 ramp

primary

#374F97

secondary

#B8A672

accent

#B552D6

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #374F97

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

Preview Lab → · Contrast checker → · Palette generator →