#374DB4#374DB4

#374DB4 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.165 H 269.7°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#374DB4
RGB	rgb(55, 77, 180)
HSL	hsl(229, 53%, 46%)
HSV	hsv(229, 69%, 71%)
CMYK	cmyk(69.4%, 57.2%, 0%, 29.4%)
CIE-LAB	lab(36.77, 26.58, -57.25)
CIE-LCH	lch(36.77, 63.12, 294.90°)
OKLab	oklab(46.51% -0.0008 -0.1649)
OKLCH	oklch(46.51% 0.165 269.7)
XYZ	xyz(12.4648, 9.4140, 44.3314)
Luminance	0.0941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB4 #B49E37

analogous

#378BB4 #374DB4 #5F37B4

triadic

#374DB4 #B4374D #4DB437

tetradic

#374DB4 #B4378B #B49E37 #37B45F

square

#374DB4 #B4378B #B49E37 #37B45F

split-complementary

#374DB4 #B45F37 #8BB437

monochromatic

#1A2556 #293985 #374DB4 #5B6FCD #8A98DB

Accessibility & contrast

On white

7.28

#374DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#374DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB4

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB4	#FFFFFF	#000000	##FFFFFF
##374DB4	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB8

Deuteranopia (green-blind)

#0051B2

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374db4;
/* rgb */ color: rgb(55, 77, 180);
/* oklch */ color: oklch(46.5% 0.165 269.7);

Tailwind

colors: {
  custom: {
    50: '#7d7ecb',
    500: '#374db4',
    950: '#000000',
  },
}

SCSS

$custom: #374db4;
$custom-light: #7d7ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#374db4",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 180
  },
  "hsl": {
    "h": 229.44,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46506,
    "c": 0.1649,
    "h": 269.7
  },
  "luminance": 0.09415
}

Semantic roles & 50–950 ramp

primary

#374DB4

secondary

#C6B981

accent

#C34BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374DB4

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

Preview Lab → · Contrast checker → · Palette generator →