#374AA6#374AA6

#374AA6 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.8% C 0.149 H 270.5°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#374AA6
RGB	rgb(55, 74, 166)
HSL	hsl(230, 50%, 43%)
HSV	hsv(230, 67%, 65%)
CMYK	cmyk(66.9%, 55.4%, 0%, 34.9%)
CIE-LAB	lab(34.93, 23.44, -51.92)
CIE-LCH	lch(34.93, 56.97, 294.30°)
OKLab	oklab(44.79% 0.0012 -0.1493)
OKLCH	oklch(44.79% 0.149 270.5)
XYZ	xyz(10.9049, 8.4620, 37.1276)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374AA6 #A69337

analogous

#3781A6 #374AA6 #5B37A6

triadic

#374AA6 #A6374A #4AA637

tetradic

#374AA6 #A63781 #A69337 #37A65B

square

#374AA6 #A63781 #A69337 #37A65B

split-complementary

#374AA6 #A65B37 #81A637

monochromatic

#19214A #283678 #374AA6 #5467C6 #8290D6

Accessibility & contrast

On white

7.80

#374AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#374AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374AA6

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374AA6	#FFFFFF	#000000	##FFFFFF
##374AA6	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057A9

Deuteranopia (green-blind)

#004DA4

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #374aa6;
/* rgb */ color: rgb(55, 74, 166);
/* oklch */ color: oklch(44.8% 0.149 270.5);

Tailwind

colors: {
  custom: {
    50: '#7b7cc1',
    500: '#374aa6',
    950: '#000000',
  },
}

SCSS

$custom: #374aa6;
$custom-light: #7b7cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#374aa6",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 166
  },
  "hsl": {
    "h": 229.73,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.44794,
    "c": 0.14926,
    "h": 270.5
  },
  "luminance": 0.08463
}

Semantic roles & 50–950 ramp

primary

#374AA6

secondary

#BFB37A

accent

#C24EDA

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374AA6

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

Preview Lab → · Contrast checker → · Palette generator →