#374DB1#374DB1

#374DB1 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.3% C 0.161 H 269.7°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#374DB1
RGB	rgb(55, 77, 177)
HSL	hsl(229, 53%, 45%)
HSV	hsv(229, 69%, 69%)
CMYK	cmyk(68.9%, 56.5%, 0%, 30.6%)
CIE-LAB	lab(36.54, 25.48, -55.85)
CIE-LCH	lch(36.54, 61.39, 294.53°)
OKLab	oklab(46.26% -0.0009 -0.1608)
OKLCH	oklch(46.26% 0.161 269.7)
XYZ	xyz(12.1625, 9.2931, 42.7392)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB1 #B19B37

analogous

#378AB1 #374DB1 #5E37B1

triadic

#374DB1 #B1374D #4DB137

tetradic

#374DB1 #B1378A #B19B37 #37B15E

square

#374DB1 #B1378A #B19B37 #37B15E

split-complementary

#374DB1 #B15E37 #8AB137

monochromatic

#1A2454 #283982 #374DB1 #5A6ECC #8897DA

Accessibility & contrast

On white

7.35

#374DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#374DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB1

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB1	#FFFFFF	#000000	##FFFFFF
##374DB1	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB4

Deuteranopia (green-blind)

#0051AF

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374db1;
/* rgb */ color: rgb(55, 77, 177);
/* oklch */ color: oklch(46.3% 0.161 269.7);

Tailwind

colors: {
  custom: {
    50: '#7d7ec9',
    500: '#374db1',
    950: '#000000',
  },
}

SCSS

$custom: #374db1;
$custom-light: #7d7ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#374db1",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 177
  },
  "hsl": {
    "h": 229.18,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.46264,
    "c": 0.16077,
    "h": 269.7
  },
  "luminance": 0.09294
}

Semantic roles & 50–950 ramp

primary

#374DB1

secondary

#C4B880

accent

#C24CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374DB1

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

Preview Lab → · Contrast checker → · Palette generator →