#374DB7#374DB7

#374DB7 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.8% C 0.169 H 269.7°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#374DB7
RGB	rgb(55, 77, 183)
HSL	hsl(230, 54%, 47%)
HSV	hsv(230, 70%, 72%)
CMYK	cmyk(69.9%, 57.9%, 0%, 28.2%)
CIE-LAB	lab(37.00, 27.67, -58.65)
CIE-LCH	lch(37.00, 64.84, 295.25°)
OKLab	oklab(46.75% -0.0007 -0.169)
OKLCH	oklch(46.75% 0.169 269.7)
XYZ	xyz(12.7737, 9.5376, 45.9583)
Luminance	0.0954 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB7 #B7A137

analogous

#378DB7 #374DB7 #6137B7

triadic

#374DB7 #B7374D #4DB737

tetradic

#374DB7 #B7378D #B7A137 #37B761

square

#374DB7 #B7378D #B7A137 #37B761

split-complementary

#374DB7 #B76137 #8DB737

monochromatic

#1B2559 #293988 #374DB7 #5D70CE #8C9ADC

Accessibility & contrast

On white

7.22

#374DB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#374DB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB7

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB7	#FFFFFF	#000000	##FFFFFF
##374DB7	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBB

Deuteranopia (green-blind)

#0051B5

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374db7;
/* rgb */ color: rgb(55, 77, 183);
/* oklch */ color: oklch(46.8% 0.169 269.7);

Tailwind

colors: {
  custom: {
    50: '#7e7ecd',
    500: '#374db7',
    950: '#000000',
  },
}

SCSS

$custom: #374db7;
$custom-light: #7e7ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#374db7",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 183
  },
  "hsl": {
    "h": 229.688,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.4675,
    "c": 0.16901,
    "h": 269.7
  },
  "luminance": 0.09539
}

Semantic roles & 50–950 ramp

primary

#374DB7

secondary

#C7BB83

accent

#C44BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374DB7

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

Preview Lab → · Contrast checker → · Palette generator →