#374FB2#374FB2

#374FB2 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.7% C 0.160 H 269.1°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#374FB2
RGB	rgb(55, 79, 178)
HSL	hsl(228, 53%, 46%)
HSV	hsv(228, 69%, 70%)
CMYK	cmyk(69.1%, 55.6%, 0%, 30.2%)
CIE-LAB	lab(37.15, 24.54, -55.46)
CIE-LCH	lch(37.15, 60.65, 293.87°)
OKLab	oklab(46.74% -0.0026 -0.1596)
OKLCH	oklch(46.74% 0.16 269.1)
XYZ	xyz(12.4047, 9.6173, 43.3134)
Luminance	0.0962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FB2 #B29A37

analogous

#378CB2 #374FB2 #5C37B2

triadic

#374FB2 #B2374F #4FB237

tetradic

#374FB2 #B2378C #B29A37 #37B25C

square

#374FB2 #B2378C #B29A37 #37B25C

split-complementary

#374FB2 #B25C37 #8CB237

monochromatic

#1A2554 #293A83 #374FB2 #5A70CC #8999DB

Accessibility & contrast

On white

7.18

#374FB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#374FB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FB2

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FB2	#FFFFFF	#000000	##FFFFFF
##374FB2	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB5

Deuteranopia (green-blind)

#0052B0

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374fb2;
/* rgb */ color: rgb(55, 79, 178);
/* oklch */ color: oklch(46.7% 0.160 269.1);

Tailwind

colors: {
  custom: {
    50: '#7d80ca',
    500: '#374fb2',
    950: '#000000',
  },
}

SCSS

$custom: #374fb2;
$custom-light: #7d80ca;
$custom-dark: #000000;

JSON

{
  "hex": "#374fb2",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 178
  },
  "hsl": {
    "h": 228.293,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.46741,
    "c": 0.15962,
    "h": 269.1
  },
  "luminance": 0.09619
}

Semantic roles & 50–950 ramp

primary

#374FB2

secondary

#C5B780

accent

#C04CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374FB2

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

Preview Lab → · Contrast checker → · Palette generator →