#6387BB#6387BB

#6387BB is a mid, moderate blue. Relative luminance 0.236; OKLCH L 61.8% C 0.089 H 257.5°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#6387BB
RGB	rgb(99, 135, 187)
HSL	hsl(215, 39%, 56%)
HSV	hsv(215, 47%, 73%)
CMYK	cmyk(47.1%, 27.8%, 0%, 26.7%)
CIE-LAB	lab(55.65, 1.72, -31.13)
CIE-LCH	lch(55.65, 31.17, 273.16°)
OKLab	oklab(61.79% -0.0192 -0.0871)
OKLCH	oklch(61.79% 0.089 257.5)
XYZ	xyz(22.7762, 23.5670, 50.3528)
Luminance	0.2357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6387BB #BB9763

analogous

#63B3BB #6387BB #6B63BB

triadic

#6387BB #BB6387 #87BB63

tetradic

#6387BB #BB63B3 #BB9763 #63BB6B

square

#6387BB #BB63B3 #BB9763 #63BB6B

split-complementary

#6387BB #BB6B63 #B3BB63

monochromatic

#324C72 #44689D #6387BB #8EA8CE #B8C9E0

Accessibility & contrast

On white

3.68

#6387BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#6387BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6387BB

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6387BB	#FFFFFF	#000000	##000000
##6387BB	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738ABD

Deuteranopia (green-blind)

#6982BA

Tritanopia (blue-blind)

#3F9299

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #6387bb;
/* rgb */ color: rgb(99, 135, 187);
/* oklch */ color: oklch(61.8% 0.089 257.5);

Tailwind

colors: {
  custom: {
    50: '#94a9cf',
    500: '#6387bb',
    950: '#000000',
  },
}

SCSS

$custom: #6387bb;
$custom-light: #94a9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#6387bb",
  "rgb": {
    "r": 99,
    "g": 135,
    "b": 187
  },
  "hsl": {
    "h": 215.455,
    "s": 39.286,
    "l": 56.078
  },
  "oklch": {
    "l": 0.61791,
    "c": 0.08916,
    "h": 257.5
  },
  "luminance": 0.23568
}

Semantic roles & 50–950 ramp

primary

#6387BB

secondary

#CFC0AB

accent

#9F59CF

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0D0F14

muted

#7E7F82

Preview Lab

Preview with #6387BB

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

Preview Lab → · Contrast checker → · Palette generator →