#374B91#374B91

#374B91 is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.4% C 0.118 H 269.1°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#374B91
RGB	rgb(55, 75, 145)
HSL	hsl(227, 45%, 39%)
HSV	hsv(227, 62%, 57%)
CMYK	cmyk(62.1%, 48.3%, 0%, 43.1%)
CIE-LAB	lab(33.75, 15.15, -41.14)
CIE-LCH	lch(33.75, 43.84, 290.21°)
OKLab	oklab(43.44% -0.0019 -0.1175)
OKLCH	oklch(43.44% 0.118 269.1)
XYZ	xyz(9.2007, 7.8879, 27.8202)
Luminance	0.0789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374B91 #917D37

analogous

#377891 #374B91 #503791

triadic

#374B91 #91374B #4B9137

tetradic

#374B91 #913778 #917D37 #379150

square

#374B91 #913778 #917D37 #379150

split-complementary

#374B91 #915037 #789137

monochromatic

#151D38 #263465 #374B91 #4B64BB #778ACB

Accessibility & contrast

On white

8.15

#374B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#374B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374B91

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374B91	#FFFFFF	#000000	##FFFFFF
##374B91	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295494

Deuteranopia (green-blind)

#1A4C90

Tritanopia (blue-blind)

#005B67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #374b91;
/* rgb */ color: rgb(55, 75, 145);
/* oklch */ color: oklch(43.4% 0.118 269.1);

Tailwind

colors: {
  custom: {
    50: '#777cb2',
    500: '#374b91',
    950: '#000000',
  },
}

SCSS

$custom: #374b91;
$custom-light: #777cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#374b91",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 145
  },
  "hsl": {
    "h": 226.667,
    "s": 45,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43438,
    "c": 0.11755,
    "h": 269.1
  },
  "luminance": 0.07889
}

Semantic roles & 50–950 ramp

primary

#374B91

secondary

#B4A570

accent

#B853D5

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #374B91

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

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