#374DA3#374DA3

#374DA3 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.2% C 0.141 H 269.3°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#374DA3
RGB	rgb(55, 77, 163)
HSL	hsl(228, 50%, 43%)
HSV	hsv(228, 66%, 64%)
CMYK	cmyk(66.3%, 52.8%, 0%, 36.1%)
CIE-LAB	lab(35.52, 20.37, -49.16)
CIE-LCH	lch(35.52, 53.21, 292.51°)
OKLab	oklab(45.18% -0.0018 -0.1411)
OKLCH	oklch(45.18% 0.141 269.3)
XYZ	xyz(10.8380, 8.7633, 35.7636)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DA3 #A38D37

analogous

#3783A3 #374DA3 #5737A3

triadic

#374DA3 #A3374D #4DA337

tetradic

#374DA3 #A33783 #A38D37 #37A357

square

#374DA3 #A33783 #A38D37 #37A357

split-complementary

#374DA3 #A35737 #83A337

monochromatic

#182247 #283775 #374DA3 #526AC5 #8091D4

Accessibility & contrast

On white

7.63

#374DA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#374DA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DA3

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DA3	#FFFFFF	#000000	##FFFFFF
##374DA3	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1859A6

Deuteranopia (green-blind)

#004FA1

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #374da3;
/* rgb */ color: rgb(55, 77, 163);
/* oklch */ color: oklch(45.2% 0.141 269.3);

Tailwind

colors: {
  custom: {
    50: '#7a7ebf',
    500: '#374da3',
    950: '#000000',
  },
}

SCSS

$custom: #374da3;
$custom-light: #7a7ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#374da3",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 163
  },
  "hsl": {
    "h": 227.778,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45176,
    "c": 0.1411,
    "h": 269.3
  },
  "luminance": 0.08764
}

Semantic roles & 50–950 ramp

primary

#374DA3

secondary

#BEAF78

accent

#BD4FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374DA3

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

Preview Lab → · Contrast checker → · Palette generator →