#374EB9#374EB9

#374EB9 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.1% C 0.170 H 269.5°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#374EB9
RGB	rgb(55, 78, 185)
HSL	hsl(229, 54%, 47%)
HSV	hsv(229, 70%, 73%)
CMYK	cmyk(70.3%, 57.8%, 0%, 27.5%)
CIE-LAB	lab(37.41, 27.74, -59.15)
CIE-LCH	lch(37.41, 65.33, 295.13°)
OKLab	oklab(47.11% -0.0015 -0.1705)
OKLCH	oklch(47.11% 0.17 269.5)
XYZ	xyz(13.0539, 9.7625, 47.0859)
Luminance	0.0976 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EB9 #B9A237

analogous

#378FB9 #374EB9 #6137B9

triadic

#374EB9 #B9374E #4EB937

tetradic

#374EB9 #B9378F #B9A237 #37B961

square

#374EB9 #B9378F #B9A237 #37B961

split-complementary

#374EB9 #B96137 #8FB937

monochromatic

#1B265B #293A8A #374EB9 #5E72CF #8D9BDD

Accessibility & contrast

On white

7.11

#374EB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#374EB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EB9

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EB9	#FFFFFF	#000000	##FFFFFF
##374EB9	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBD

Deuteranopia (green-blind)

#0052B7

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #374eb9;
/* rgb */ color: rgb(55, 78, 185);
/* oklch */ color: oklch(47.1% 0.170 269.5);

Tailwind

colors: {
  custom: {
    50: '#7e7fcf',
    500: '#374eb9',
    950: '#000000',
  },
}

SCSS

$custom: #374eb9;
$custom-light: #7e7fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#374eb9",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 185
  },
  "hsl": {
    "h": 229.385,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47107,
    "c": 0.17049,
    "h": 269.5
  },
  "luminance": 0.09764
}

Semantic roles & 50–950 ramp

primary

#374EB9

secondary

#C8BC84

accent

#C34ADE

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374EB9

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

Preview Lab → · Contrast checker → · Palette generator →