#374A7B#374A7B

#374A7B is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.8% C 0.086 H 266.7°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#374A7B
RGB	rgb(55, 74, 123)
HSL	hsl(223, 38%, 35%)
HSV	hsv(223, 55%, 48%)
CMYK	cmyk(55.3%, 39.8%, 0%, 51.8%)
CIE-LAB	lab(32.12, 7.97, -30.17)
CIE-LCH	lch(32.12, 31.21, 284.80°)
OKLab	oklab(41.76% -0.0049 -0.0854)
OKLCH	oklch(41.76% 0.086 266.7)
XYZ	xyz(7.5983, 7.1393, 19.7127)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374A7B #7B6837

analogous

#376C7B #374A7B #46377B

triadic

#374A7B #7B374A #4A7B37

tetradic

#374A7B #7B376C #7B6837 #377B46

square

#374A7B #7B376C #7B6837 #377B46

split-complementary

#374A7B #7B4637 #6C7B37

monochromatic

#111726 #243151 #374A7B #4A63A5 #6E85BE

Accessibility & contrast

On white

8.65

#374A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#374A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374A7B

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374A7B	#FFFFFF	#000000	##FFFFFF
##374A7B	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364F7D

Deuteranopia (green-blind)

#2E497A

Tritanopia (blue-blind)

#15555C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #374a7b;
/* rgb */ color: rgb(55, 74, 123);
/* oklch */ color: oklch(41.8% 0.086 266.7);

Tailwind

colors: {
  custom: {
    50: '#737ca1',
    500: '#374a7b',
    950: '#000000',
  },
}

SCSS

$custom: #374a7b;
$custom-light: #737ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#374a7b",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 123
  },
  "hsl": {
    "h": 223.235,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.41758,
    "c": 0.08553,
    "h": 266.7
  },
  "luminance": 0.0714
}

Semantic roles & 50–950 ramp

primary

#374A7B

secondary

#A79567

accent

#AE5ACE

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#08090F

muted

#7B7B7E

Preview Lab

Preview with #374A7B

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

Preview Lab → · Contrast checker → · Palette generator →