#374E8F#374E8F

#374E8F is a dark, moderate blue. Relative luminance 0.082; OKLCH L 44.0% C 0.111 H 267.1°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#374E8F
RGB	rgb(55, 78, 143)
HSL	hsl(224, 44%, 39%)
HSV	hsv(224, 62%, 56%)
CMYK	cmyk(61.5%, 45.5%, 0%, 43.9%)
CIE-LAB	lab(34.48, 12.43, -38.74)
CIE-LCH	lch(34.48, 40.69, 287.79°)
OKLab	oklab(43.96% -0.0055 -0.1104)
OKLCH	oklch(43.96% 0.111 267.1)
XYZ	xyz(9.2562, 8.2434, 27.0846)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E8F #8F7837

analogous

#377A8F #374E8F #4C378F

triadic

#374E8F #8F374E #4E8F37

tetradic

#374E8F #8F377A #8F7837 #378F4C

square

#374E8F #8F377A #8F7837 #378F4C

split-complementary

#374E8F #8F4C37 #7A8F37

monochromatic

#151E37 #263663 #374E8F #4A67B9 #768CCA

Accessibility & contrast

On white

7.93

#374E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#374E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E8F

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E8F	#FFFFFF	#000000	##FFFFFF
##374E8F	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305591

Deuteranopia (green-blind)

#234D8E

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #374e8f;
/* rgb */ color: rgb(55, 78, 143);
/* oklch */ color: oklch(44.0% 0.111 267.1);

Tailwind

colors: {
  custom: {
    50: '#767fb0',
    500: '#374e8f',
    950: '#000000',
  },
}

SCSS

$custom: #374e8f;
$custom-light: #767fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#374e8f",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 143
  },
  "hsl": {
    "h": 224.318,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.4396,
    "c": 0.11058,
    "h": 267.1
  },
  "luminance": 0.08244
}

Semantic roles & 50–950 ramp

primary

#374E8F

secondary

#B3A16F

accent

#B354D4

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #374E8F

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

Preview Lab → · Contrast checker → · Palette generator →