#6388CA#6388CA

#6388CA is a light, moderate blue. Relative luminance 0.245; OKLCH L 62.8% C 0.109 H 261.4°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#6388CA
RGB	rgb(99, 136, 202)
HSL	hsl(218, 49%, 59%)
HSV	hsv(218, 51%, 79%)
CMYK	cmyk(51%, 32.7%, 0%, 20.8%)
CIE-LAB	lab(56.61, 5.70, -38.14)
CIE-LCH	lch(56.61, 38.57, 278.51°)
OKLab	oklab(62.76% -0.0162 -0.1074)
OKLCH	oklch(62.76% 0.109 261.4)
XYZ	xyz(24.6068, 24.5235, 59.3025)
Luminance	0.2452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388CA #CAA563

analogous

#63BBCA #6388CA #7263CA

triadic

#6388CA #CA6388 #88CA63

tetradic

#6388CA #CA63BB #CAA563 #63CA72

square

#6388CA #CA63BB #CAA563 #63CA72

split-complementary

#6388CA #CA7263 #BBCA63

monochromatic

#2D4D85 #3D67B3 #6388CA #91ABDA #BECEE9

Accessibility & contrast

On white

3.56

#6388CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#6388CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388CA

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388CA	#FFFFFF	#000000	##000000
##6388CA	1.00	3.56	5.91	5.91
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E8DCD

Deuteranopia (green-blind)

#6283C9

Tritanopia (blue-blind)

#3296A0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #6388ca;
/* rgb */ color: rgb(99, 136, 202);
/* oklch */ color: oklch(62.8% 0.109 261.4);

Tailwind

colors: {
  custom: {
    50: '#95aada',
    500: '#6388ca',
    950: '#000000',
  },
}

SCSS

$custom: #6388ca;
$custom-light: #95aada;
$custom-dark: #000000;

JSON

{
  "hex": "#6388ca",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 202
  },
  "hsl": {
    "h": 218.447,
    "s": 49.282,
    "l": 59.02
  },
  "oklch": {
    "l": 0.6276,
    "c": 0.10857,
    "h": 261.4
  },
  "luminance": 0.24525
}

Semantic roles & 50–950 ramp

primary

#6388CA

secondary

#D9CAB0

accent

#A74FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #6388CA

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

Preview Lab → · Contrast checker → · Palette generator →