#6399DF#6399DF

#6399DF is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.5% C 0.119 H 255.4°. Best body text is #000000 at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#6399DF
RGB	rgb(99, 153, 223)
HSL	hsl(214, 66%, 63%)
HSV	hsv(214, 56%, 87%)
CMYK	cmyk(55.6%, 31.4%, 0%, 12.5%)
CIE-LAB	lab(62.30, 2.35, -40.96)
CIE-LCH	lch(62.30, 41.03, 273.28°)
OKLab	oklab(67.53% -0.03 -0.1154)
OKLCH	oklch(67.53% 0.119 255.4)
XYZ	xyz(29.8514, 30.7604, 74.1620)
Luminance	0.3076 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399DF #DFA963

analogous

#63D7DF #6399DF #6B63DF

triadic

#6399DF #DF6399 #99DF63

tetradic

#6399DF #DF63D7 #DFA963 #63DF6B

square

#6399DF #DF63D7 #DFA963 #63DF6B

split-complementary

#6399DF #DF6B63 #D7DF63

monochromatic

#225BA6 #3078D5 #6399DF #96BAE9 #C9DBF4

Accessibility & contrast

On white

2.94

#6399DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.15

#6399DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399DF

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399DF	#FFFFFF	#000000	##000000
##6399DF	1.00	2.94	7.15	7.15
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.15	21.00	1.00	1.00
##000000	7.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9DE2

Deuteranopia (green-blind)

#6D91DE

Tritanopia (blue-blind)

#01A9B2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #6399df;
/* rgb */ color: rgb(99, 153, 223);
/* oklch */ color: oklch(67.5% 0.119 255.4);

Tailwind

colors: {
  custom: {
    50: '#98b6e9',
    500: '#6399df',
    950: '#000000',
  },
}

SCSS

$custom: #6399df;
$custom-light: #98b6e9;
$custom-dark: #000000;

JSON

{
  "hex": "#6399df",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 223
  },
  "hsl": {
    "h": 213.871,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.67525,
    "c": 0.11926,
    "h": 255.4
  },
  "luminance": 0.30763
}

Semantic roles & 50–950 ramp

primary

#6399DF

secondary

#E5D2B9

accent

#7F18CE

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #6399DF

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

Preview Lab → · Contrast checker → · Palette generator →