#374DA9#374DA9

#374DA9 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.6% C 0.150 H 269.5°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#374DA9
RGB	rgb(55, 77, 169)
HSL	hsl(228, 51%, 44%)
HSV	hsv(228, 67%, 66%)
CMYK	cmyk(67.5%, 54.4%, 0%, 33.7%)
CIE-LAB	lab(35.95, 22.56, -52.05)
CIE-LCH	lch(35.95, 56.73, 293.44°)
OKLab	oklab(45.64% -0.0014 -0.1496)
OKLCH	oklch(45.64% 0.15 269.5)
XYZ	xyz(11.3884, 8.9835, 38.6622)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DA9 #A99337

analogous

#3786A9 #374DA9 #5A37A9

triadic

#374DA9 #A9374D #4DA937

tetradic

#374DA9 #A93786 #A99337 #37A95A

square

#374DA9 #A93786 #A99337 #37A95A

split-complementary

#374DA9 #A95A37 #86A937

monochromatic

#19234D #28387B #374DA9 #556BC8 #8494D7

Accessibility & contrast

On white

7.51

#374DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#374DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DA9

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DA9	#FFFFFF	#000000	##FFFFFF
##374DA9	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#095AAC

Deuteranopia (green-blind)

#0050A7

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374da9;
/* rgb */ color: rgb(55, 77, 169);
/* oklch */ color: oklch(45.6% 0.150 269.5);

Tailwind

colors: {
  custom: {
    50: '#7b7ec3',
    500: '#374da9',
    950: '#000000',
  },
}

SCSS

$custom: #374da9;
$custom-light: #7b7ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#374da9",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 169
  },
  "hsl": {
    "h": 228.421,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.45635,
    "c": 0.14962,
    "h": 269.5
  },
  "luminance": 0.08985
}

Semantic roles & 50–950 ramp

primary

#374DA9

secondary

#C0B37B

accent

#BF4DDA

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #374DA9

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

Preview Lab → · Contrast checker → · Palette generator →