#6377AD#6377AD

#6377AD is a mid, moderate blue. Relative luminance 0.189; OKLCH L 57.6% C 0.087 H 268.1°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#6377AD
RGB	rgb(99, 119, 173)
HSL	hsl(224, 31%, 53%)
HSV	hsv(224, 43%, 68%)
CMYK	cmyk(42.8%, 31.2%, 0%, 32.2%)
CIE-LAB	lab(50.53, 7.05, -31.06)
CIE-LCH	lch(50.53, 31.85, 282.78°)
OKLab	oklab(57.59% -0.0029 -0.0869)
OKLCH	oklch(57.59% 0.087 268.1)
XYZ	xyz(19.2829, 18.8624, 42.1518)
Luminance	0.1886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377AD #AD9963

analogous

#639CAD #6377AD #7463AD

triadic

#6377AD #AD6377 #77AD63

tetradic

#6377AD #AD639C #AD9963 #63AD74

square

#6377AD #AD639C #AD9963 #63AD74

split-complementary

#6377AD #AD7463 #9CAD63

monochromatic

#344062 #495A8A #6377AD #8B9AC2 #B3BDD7

Accessibility & contrast

On white

4.40

#6377AD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#6377AD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377AD

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377AD	#FFFFFF	#000000	##000000
##6377AD	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647CAF

Deuteranopia (green-blind)

#5D75AC

Tritanopia (blue-blind)

#4A828A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #6377ad;
/* rgb */ color: rgb(99, 119, 173);
/* oklch */ color: oklch(57.6% 0.087 268.1);

Tailwind

colors: {
  custom: {
    50: '#929ec5',
    500: '#6377ad',
    950: '#000000',
  },
}

SCSS

$custom: #6377ad;
$custom-light: #929ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#6377ad",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 173
  },
  "hsl": {
    "h": 223.784,
    "s": 31.092,
    "l": 53.333
  },
  "oklch": {
    "l": 0.5759,
    "c": 0.08697,
    "h": 268.1
  },
  "luminance": 0.18863
}

Semantic roles & 50–950 ramp

primary

#6377AD

secondary

#C6BDA6

accent

#AC61C7

background

#F9F9FC

surface

#F1F2F8

border

#CBCCD1

text

#0D0E13

muted

#7E7E82

Preview Lab

Preview with #6377AD

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

Preview Lab → · Contrast checker → · Palette generator →