#4371BA#4371BA

#4371BA is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.1% C 0.125 H 259.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4371BA
RGB	rgb(67, 113, 186)
HSL	hsl(217, 47%, 50%)
HSV	hsv(217, 64%, 73%)
CMYK	cmyk(64%, 39.2%, 0%, 27.1%)
CIE-LAB	lab(47.68, 7.65, -43.19)
CIE-LCH	lch(47.68, 43.86, 280.05°)
OKLab	oklab(55.12% -0.0233 -0.1228)
OKLCH	oklch(55.12% 0.125 259.3)
XYZ	xyz(17.0796, 16.5471, 48.7387)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371BA #BA8C43

analogous

#43ADBA #4371BA #5143BA

triadic

#4371BA #BA4371 #71BA43

tetradic

#4371BA #BA43AD #BA8C43 #43BA51

square

#4371BA #BA43AD #BA8C43 #43BA51

split-complementary

#4371BA #BA5143 #ADBA43

monochromatic

#233A60 #33568D #4371BA #6F93CB #9CB5DB

Accessibility & contrast

On white

4.87

#4371BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#4371BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4371BA

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371BA	#FFFFFF	#000000	##FFFFFF
##4371BA	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5177BD

Deuteranopia (green-blind)

#406CB8

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4371ba;
/* rgb */ color: rgb(67, 113, 186);
/* oklch */ color: oklch(55.1% 0.125 259.3);

Tailwind

colors: {
  custom: {
    50: '#8299cf',
    500: '#4371ba',
    950: '#000000',
  },
}

SCSS

$custom: #4371ba;
$custom-light: #8299cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4371ba",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 186
  },
  "hsl": {
    "h": 216.807,
    "s": 47.036,
    "l": 49.608
  },
  "oklch": {
    "l": 0.5512,
    "c": 0.12501,
    "h": 259.3
  },
  "luminance": 0.16549
}

Semantic roles & 50–950 ramp

primary

#4371BA

secondary

#C8B391

accent

#A351D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #4371BA

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

Preview Lab → · Contrast checker → · Palette generator →