#374B87#374B87

#374B87 is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.8% C 0.103 H 268.0°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#374B87
RGB	rgb(55, 75, 135)
HSL	hsl(225, 42%, 37%)
HSV	hsv(225, 59%, 53%)
CMYK	cmyk(59.3%, 44.4%, 0%, 47.1%)
CIE-LAB	lab(33.12, 11.55, -36.02)
CIE-LCH	lch(33.12, 37.82, 287.78°)
OKLab	oklab(42.76% -0.0035 -0.1025)
OKLCH	oklch(42.76% 0.103 268)
XYZ	xyz(8.4633, 7.5930, 23.9366)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374B87 #877337

analogous

#377387 #374B87 #4B3787

triadic

#374B87 #87374B #4B8737

tetradic

#374B87 #873773 #877337 #37874B

square

#374B87 #873773 #877337 #37874B

split-complementary

#374B87 #874B37 #738737

monochromatic

#141B30 #25335C #374B87 #4963B2 #7387C6

Accessibility & contrast

On white

8.34

#374B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#374B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374B87

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374B87	#FFFFFF	#000000	##FFFFFF
##374B87	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315289

Deuteranopia (green-blind)

#264B86

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #374b87;
/* rgb */ color: rgb(55, 75, 135);
/* oklch */ color: oklch(42.8% 0.103 268.0);

Tailwind

colors: {
  custom: {
    50: '#757caa',
    500: '#374b87',
    950: '#000000',
  },
}

SCSS

$custom: #374b87;
$custom-light: #757caa;
$custom-dark: #000000;

JSON

{
  "hex": "#374b87",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 135
  },
  "hsl": {
    "h": 225,
    "s": 42.105,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42755,
    "c": 0.10255,
    "h": 268
  },
  "luminance": 0.07594
}

Semantic roles & 50–950 ramp

primary

#374B87

secondary

#AF9E6B

accent

#B356D2

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #374B87

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

Preview Lab → · Contrast checker → · Palette generator →