#374F87#374F87

#374F87 is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.7% C 0.097 H 265.1°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#374F87
RGB	rgb(55, 79, 135)
HSL	hsl(222, 42%, 37%)
HSV	hsv(222, 59%, 53%)
CMYK	cmyk(59.3%, 41.5%, 0%, 47.1%)
CIE-LAB	lab(34.30, 8.90, -34.14)
CIE-LCH	lch(34.30, 35.28, 284.61°)
OKLab	oklab(43.66% -0.0083 -0.0969)
OKLCH	oklch(43.66% 0.097 265.1)
XYZ	xyz(8.7432, 8.1528, 24.0299)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F87 #876F37

analogous

#377787 #374F87 #473787

triadic

#374F87 #87374F #4F8737

tetradic

#374F87 #873777 #876F37 #378747

square

#374F87 #873777 #876F37 #378747

split-complementary

#374F87 #874737 #778737

monochromatic

#141C30 #25365C #374F87 #4968B2 #738CC6

Accessibility & contrast

On white

7.98

#374F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#374F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F87

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F87	#FFFFFF	#000000	##FFFFFF
##374F87	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375589

Deuteranopia (green-blind)

#2D4D86

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #374f87;
/* rgb */ color: rgb(55, 79, 135);
/* oklch */ color: oklch(43.7% 0.097 265.1);

Tailwind

colors: {
  custom: {
    50: '#7580aa',
    500: '#374f87',
    950: '#000000',
  },
}

SCSS

$custom: #374f87;
$custom-light: #7580aa;
$custom-dark: #000000;

JSON

{
  "hex": "#374f87",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 135
  },
  "hsl": {
    "h": 222,
    "s": 42.105,
    "l": 37.255
  },
  "oklch": {
    "l": 0.43662,
    "c": 0.09729,
    "h": 265.1
  },
  "luminance": 0.08153
}

Semantic roles & 50–950 ramp

primary

#374F87

secondary

#AF9A6B

accent

#AD56D2

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #374F87

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

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