#374EAB#374EAB

#374EAB is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.0% C 0.151 H 269.2°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#374EAB
RGB	rgb(55, 78, 171)
HSL	hsl(228, 51%, 44%)
HSV	hsv(228, 68%, 67%)
CMYK	cmyk(67.8%, 54.4%, 0%, 32.9%)
CIE-LAB	lab(36.37, 22.64, -52.57)
CIE-LCH	lch(36.37, 57.24, 293.30°)
OKLab	oklab(45.99% -0.0021 -0.1511)
OKLCH	oklch(45.99% 0.151 269.2)
XYZ	xyz(11.6481, 9.2002, 39.6821)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EAB #AB9437

analogous

#3788AB #374EAB #5A37AB

triadic

#374EAB #AB374E #4EAB37

tetradic

#374EAB #AB3788 #AB9437 #37AB5A

square

#374EAB #AB3788 #AB9437 #37AB5A

split-complementary

#374EAB #AB5A37 #88AB37

monochromatic

#19244E #28397D #374EAB #566DC9 #8595D8

Accessibility & contrast

On white

7.39

#374EAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#374EAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EAB

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EAB	#FFFFFF	#000000	##FFFFFF
##374EAB	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#085BAE

Deuteranopia (green-blind)

#0050A9

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374eab;
/* rgb */ color: rgb(55, 78, 171);
/* oklch */ color: oklch(46.0% 0.151 269.2);

Tailwind

colors: {
  custom: {
    50: '#7b7fc5',
    500: '#374eab',
    950: '#000000',
  },
}

SCSS

$custom: #374eab;
$custom-light: #7b7fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#374eab",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 171
  },
  "hsl": {
    "h": 228.103,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.45992,
    "c": 0.15115,
    "h": 269.2
  },
  "luminance": 0.09201
}

Semantic roles & 50–950 ramp

primary

#374EAB

secondary

#C1B47C

accent

#BF4DDB

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #374EAB

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

Preview Lab → · Contrast checker → · Palette generator →