#374EB7#374EB7

#374EB7 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.9% C 0.168 H 269.5°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#374EB7
RGB	rgb(55, 78, 183)
HSL	hsl(229, 54%, 47%)
HSV	hsv(229, 70%, 72%)
CMYK	cmyk(69.9%, 57.4%, 0%, 28.2%)
CIE-LAB	lab(37.26, 27.02, -58.22)
CIE-LCH	lch(37.26, 64.19, 294.89°)
OKLab	oklab(46.94% -0.0016 -0.1677)
OKLCH	oklch(46.94% 0.168 269.5)
XYZ	xyz(12.8443, 9.6786, 45.9818)
Luminance	0.0968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EB7 #B7A037

analogous

#378EB7 #374EB7 #6037B7

triadic

#374EB7 #B7374E #4EB737

tetradic

#374EB7 #B7378E #B7A037 #37B760

square

#374EB7 #B7378E #B7A037 #37B760

split-complementary

#374EB7 #B76037 #8EB737

monochromatic

#1B2659 #293A88 #374EB7 #5D71CE #8C9ADC

Accessibility & contrast

On white

7.15

#374EB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#374EB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EB7

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EB7	#FFFFFF	#000000	##FFFFFF
##374EB7	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBB

Deuteranopia (green-blind)

#0052B5

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #374eb7;
/* rgb */ color: rgb(55, 78, 183);
/* oklch */ color: oklch(46.9% 0.168 269.5);

Tailwind

colors: {
  custom: {
    50: '#7e7fcd',
    500: '#374eb7',
    950: '#000000',
  },
}

SCSS

$custom: #374eb7;
$custom-light: #7e7fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#374eb7",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 183
  },
  "hsl": {
    "h": 229.219,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.46944,
    "c": 0.16776,
    "h": 269.5
  },
  "luminance": 0.0968
}

Semantic roles & 50–950 ramp

primary

#374EB7

secondary

#C7BB83

accent

#C34BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374EB7

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

Preview Lab → · Contrast checker → · Palette generator →