#374DA8#374DA8

#374DA8 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.6% C 0.148 H 269.4°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#374DA8
RGB	rgb(55, 77, 168)
HSL	hsl(228, 51%, 44%)
HSV	hsv(228, 67%, 66%)
CMYK	cmyk(67.3%, 54.2%, 0%, 34.1%)
CIE-LAB	lab(35.88, 22.20, -51.57)
CIE-LCH	lch(35.88, 56.15, 293.29°)
OKLab	oklab(45.56% -0.0014 -0.1482)
OKLCH	oklch(45.56% 0.148 269.4)
XYZ	xyz(11.2949, 8.9461, 38.1697)
Luminance	0.0895 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DA8 #A89237

analogous

#3785A8 #374DA8 #5937A8

triadic

#374DA8 #A8374D #4DA837

tetradic

#374DA8 #A83785 #A89237 #37A859

square

#374DA8 #A83785 #A89237 #37A859

split-complementary

#374DA8 #A85937 #85A837

monochromatic

#19234C #28387A #374DA8 #556BC7 #8393D6

Accessibility & contrast

On white

7.53

#374DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#374DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DA8

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DA8	#FFFFFF	#000000	##FFFFFF
##374DA8	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C5AAB

Deuteranopia (green-blind)

#004FA6

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #374da8;
/* rgb */ color: rgb(55, 77, 168);
/* oklch */ color: oklch(45.6% 0.148 269.4);

Tailwind

colors: {
  custom: {
    50: '#7b7ec2',
    500: '#374da8',
    950: '#000000',
  },
}

SCSS

$custom: #374da8;
$custom-light: #7b7ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#374da8",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 168
  },
  "hsl": {
    "h": 228.319,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.45557,
    "c": 0.14821,
    "h": 269.4
  },
  "luminance": 0.08947
}

Semantic roles & 50–950 ramp

primary

#374DA8

secondary

#C0B37B

accent

#BF4EDA

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374DA8

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

Preview Lab → · Contrast checker → · Palette generator →