#374AA1#374AA1

#374AA1 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.4% C 0.142 H 270.3°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#374AA1
RGB	rgb(55, 74, 161)
HSL	hsl(229, 49%, 42%)
HSV	hsv(229, 66%, 63%)
CMYK	cmyk(65.8%, 54%, 0%, 36.9%)
CIE-LAB	lab(34.56, 21.62, -49.51)
CIE-LCH	lch(34.56, 54.03, 293.59°)
OKLab	oklab(44.41% 0.0009 -0.1422)
OKLCH	oklch(44.41% 0.142 270.3)
XYZ	xyz(10.4552, 8.2821, 34.7589)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374AA1 #A18E37

analogous

#377FA1 #374AA1 #5937A1

triadic

#374AA1 #A1374A #4AA137

tetradic

#374AA1 #A1377F #A18E37 #37A159

square

#374AA1 #A1377F #A18E37 #37A159

split-complementary

#374AA1 #A15937 #7FA137

monochromatic

#182046 #273573 #374AA1 #5166C4 #7F8ED3

Accessibility & contrast

On white

7.90

#374AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#374AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374AA1

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374AA1	#FFFFFF	#000000	##FFFFFF
##374AA1	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F56A4

Deuteranopia (green-blind)

#004D9F

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #374aa1;
/* rgb */ color: rgb(55, 74, 161);
/* oklch */ color: oklch(44.4% 0.142 270.3);

Tailwind

colors: {
  custom: {
    50: '#7a7cbd',
    500: '#374aa1',
    950: '#000000',
  },
}

SCSS

$custom: #374aa1;
$custom-light: #7a7cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#374aa1",
  "rgb": {
    "r": 55,
    "g": 74,
    "b": 161
  },
  "hsl": {
    "h": 229.245,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44405,
    "c": 0.14217,
    "h": 270.3
  },
  "luminance": 0.08283
}

Semantic roles & 50–950 ramp

primary

#374AA1

secondary

#BDB077

accent

#C04FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374AA1

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

Preview Lab → · Contrast checker → · Palette generator →