#374A7C#374A7C

#374A7C is a dark, moderate blue. Relative luminance 0.072; OKLCH L 41.8% C 0.087 H 266.9°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#374A7C
RGB	rgb(55, 74, 124)
HSL	hsl(223, 39%, 35%)
HSV	hsv(223, 56%, 49%)
CMYK	cmyk(55.6%, 40.3%, 0%, 51.4%)
CIE-LAB	lab(32.18, 8.32, -30.71)
CIE-LCH	lch(32.18, 31.81, 285.16°)
OKLab	oklab(41.82% -0.0047 -0.0869)
OKLCH	oklch(41.82% 0.087 266.9)
XYZ	xyz(7.6612, 7.1645, 20.0440)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374A7C #7C6937

analogous

#376C7C #374A7C #46377C

triadic

#374A7C #7C374A #4A7C37

tetradic

#374A7C #7C376C #7C6937 #377C46

square

#374A7C #7C376C #7C6937 #377C46

split-complementary

#374A7C #7C4637 #6C7C37

monochromatic

#111727 #243152 #374A7C #4A63A6 #6E85BF

Accessibility & contrast

On white

8.63

#374A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#374A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374A7C

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374A7C	#FFFFFF	#000000	##FFFFFF
##374A7C	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364F7E

Deuteranopia (green-blind)

#2E497B

Tritanopia (blue-blind)

#13555D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #374a7c;
/* rgb */ color: rgb(55, 74, 124);
/* oklch */ color: oklch(41.8% 0.087 266.9);

Tailwind

colors: {
  custom: {
    50: '#737ca2',
    500: '#374a7c',
    950: '#000000',
  },
}

SCSS

$custom: #374a7c;
$custom-light: #737ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#374a7c",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 124
  },
  "hsl": {
    "h": 223.478,
    "s": 38.547,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4182,
    "c": 0.08708,
    "h": 266.9
  },
  "luminance": 0.07165
}

Semantic roles & 50–950 ramp

primary

#374A7C

secondary

#A89667

accent

#AE59CE

background

#F7F7FA

surface

#EDEEF3

border

#C8C9CD

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #374A7C

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

Preview Lab → · Contrast checker → · Palette generator →