#374FB8#374FB8

#374FB8 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.2% C 0.168 H 269.2°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#374FB8
RGB	rgb(55, 79, 184)
HSL	hsl(229, 54%, 47%)
HSV	hsv(229, 70%, 72%)
CMYK	cmyk(70.1%, 57.1%, 0%, 27.8%)
CIE-LAB	lab(37.60, 26.73, -58.26)
CIE-LCH	lch(37.60, 64.10, 294.64°)
OKLab	oklab(47.22% -0.0023 -0.1679)
OKLCH	oklch(47.22% 0.168 269.2)
XYZ	xyz(13.0203, 9.8636, 46.5558)
Luminance	0.0987 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FB8 #B8A037

analogous

#3790B8 #374FB8 #6037B8

triadic

#374FB8 #B8374F #4FB837

tetradic

#374FB8 #B83790 #B8A037 #37B860

square

#374FB8 #B83790 #B8A037 #37B860

split-complementary

#374FB8 #B86037 #90B837

monochromatic

#1B275A #293B89 #374FB8 #5D73CF #8D9CDD

Accessibility & contrast

On white

7.06

#374FB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#374FB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FB8

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FB8	#FFFFFF	#000000	##FFFFFF
##374FB8	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBC

Deuteranopia (green-blind)

#0053B6

Tritanopia (blue-blind)

#00697C

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #374fb8;
/* rgb */ color: rgb(55, 79, 184);
/* oklch */ color: oklch(47.2% 0.168 269.2);

Tailwind

colors: {
  custom: {
    50: '#7e80ce',
    500: '#374fb8',
    950: '#000000',
  },
}

SCSS

$custom: #374fb8;
$custom-light: #7e80ce;
$custom-dark: #000000;

JSON

{
  "hex": "#374fb8",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 184
  },
  "hsl": {
    "h": 228.837,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4722,
    "c": 0.16788,
    "h": 269.2
  },
  "luminance": 0.09865
}

Semantic roles & 50–950 ramp

primary

#374FB8

secondary

#C7BB84

accent

#C24ADD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374FB8

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

Preview Lab → · Contrast checker → · Palette generator →