#374A71#374A71

#374A71 is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.2% C 0.070 H 263.8°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#374A71
RGB	rgb(55, 74, 113)
HSL	hsl(220, 35%, 33%)
HSV	hsv(220, 51%, 44%)
CMYK	cmyk(51.3%, 34.5%, 0%, 55.7%)
CIE-LAB	lab(31.58, 4.53, -24.77)
CIE-LCH	lch(31.58, 25.18, 280.36°)
OKLab	oklab(41.16% -0.0076 -0.0696)
OKLCH	oklch(41.16% 0.07 263.8)
XYZ	xyz(7.0040, 6.9016, 16.5826)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374A71 #715E37

analogous

#376771 #374A71 #413771

triadic

#374A71 #71374A #4A7137

tetradic

#374A71 #713767 #715E37 #377141

square

#374A71 #713767 #715E37 #377141

split-complementary

#374A71 #714137 #677137

monochromatic

#0F141F #232F48 #374A71 #4B659A #6B84B7

Accessibility & contrast

On white

8.82

#374A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#374A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374A71

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374A71	#FFFFFF	#000000	##FFFFFF
##374A71	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4D73

Deuteranopia (green-blind)

#354870

Tritanopia (blue-blind)

#1E5258

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #374a71;
/* rgb */ color: rgb(55, 74, 113);
/* oklch */ color: oklch(41.2% 0.070 263.8);

Tailwind

colors: {
  custom: {
    50: '#717c9a',
    500: '#374a71',
    950: '#000000',
  },
}

SCSS

$custom: #374a71;
$custom-light: #717c9a;
$custom-dark: #000000;

JSON

{
  "hex": "#374a71",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 113
  },
  "hsl": {
    "h": 220.345,
    "s": 34.524,
    "l": 32.941
  },
  "oklch": {
    "l": 0.41162,
    "c": 0.07006,
    "h": 263.8
  },
  "luminance": 0.06902
}

Semantic roles & 50–950 ramp

primary

#374A71

secondary

#A08C64

accent

#A75DCB

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#08090E

muted

#7B7B7E

Preview Lab

Preview with #374A71

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

Preview Lab → · Contrast checker → · Palette generator →