#374DB3#374DB3

#374DB3 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.4% C 0.164 H 269.7°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#374DB3
RGB	rgb(55, 77, 179)
HSL	hsl(229, 53%, 46%)
HSV	hsv(229, 69%, 70%)
CMYK	cmyk(69.3%, 57%, 0%, 29.8%)
CIE-LAB	lab(36.69, 26.21, -56.78)
CIE-LCH	lch(36.69, 62.54, 294.78°)
OKLab	oklab(46.43% -0.0009 -0.1635)
OKLCH	oklch(46.43% 0.164 269.7)
XYZ	xyz(12.3633, 9.3734, 43.7968)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB3 #B39D37

analogous

#378BB3 #374DB3 #5F37B3

triadic

#374DB3 #B3374D #4DB337

tetradic

#374DB3 #B3378B #B39D37 #37B35F

square

#374DB3 #B3378B #B39D37 #37B35F

split-complementary

#374DB3 #B35F37 #8BB337

monochromatic

#1A2555 #293984 #374DB3 #5B6FCD #8A98DB

Accessibility & contrast

On white

7.30

#374DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#374DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB3

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB3	#FFFFFF	#000000	##FFFFFF
##374DB3	1.00	7.30	2.87	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB6

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374db3;
/* rgb */ color: rgb(55, 77, 179);
/* oklch */ color: oklch(46.4% 0.164 269.7);

Tailwind

colors: {
  custom: {
    50: '#7d7eca',
    500: '#374db3',
    950: '#000000',
  },
}

SCSS

$custom: #374db3;
$custom-light: #7d7eca;
$custom-dark: #000000;

JSON

{
  "hex": "#374db3",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 179
  },
  "hsl": {
    "h": 229.355,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46425,
    "c": 0.16353,
    "h": 269.7
  },
  "luminance": 0.09375
}

Semantic roles & 50–950 ramp

primary

#374DB3

secondary

#C5B981

accent

#C34BDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374DB3

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

Preview Lab → · Contrast checker → · Palette generator →