#374F8F#374F8F

#374F8F is a dark, moderate blue. Relative luminance 0.084; OKLCH L 44.2% C 0.109 H 266.5°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#374F8F
RGB	rgb(55, 79, 143)
HSL	hsl(224, 44%, 39%)
HSV	hsv(224, 62%, 56%)
CMYK	cmyk(61.5%, 44.8%, 0%, 43.9%)
CIE-LAB	lab(34.78, 11.77, -38.27)
CIE-LCH	lch(34.78, 40.04, 287.09°)
OKLab	oklab(44.18% -0.0066 -0.1091)
OKLCH	oklch(44.18% 0.109 266.5)
XYZ	xyz(9.3278, 8.3866, 27.1085)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F8F #8F7737

analogous

#377B8F #374F8F #4B378F

triadic

#374F8F #8F374F #4F8F37

tetradic

#374F8F #8F377B #8F7737 #378F4B

square

#374F8F #8F377B #8F7737 #378F4B

split-complementary

#374F8F #8F4B37 #7B8F37

monochromatic

#151E37 #263763 #374F8F #4A68B9 #768DCA

Accessibility & contrast

On white

7.84

#374F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#374F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F8F

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F8F	#FFFFFF	#000000	##FFFFFF
##374F8F	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325691

Deuteranopia (green-blind)

#254E8E

Tritanopia (blue-blind)

#005D68

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #374f8f;
/* rgb */ color: rgb(55, 79, 143);
/* oklch */ color: oklch(44.2% 0.109 266.5);

Tailwind

colors: {
  custom: {
    50: '#7680b0',
    500: '#374f8f',
    950: '#000000',
  },
}

SCSS

$custom: #374f8f;
$custom-light: #7680b0;
$custom-dark: #000000;

JSON

{
  "hex": "#374f8f",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 143
  },
  "hsl": {
    "h": 223.636,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.44183,
    "c": 0.10927,
    "h": 266.5
  },
  "luminance": 0.08387
}

Semantic roles & 50–950 ramp

primary

#374F8F

secondary

#B3A06F

accent

#B154D4

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #374F8F

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

Preview Lab → · Contrast checker → · Palette generator →