#6583CB#6583CB

#6583CB is a mid, moderate blue. Relative luminance 0.233; OKLCH L 61.9% C 0.115 H 266.0°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#6583CB
RGB	rgb(101, 131, 203)
HSL	hsl(222, 50%, 60%)
HSV	hsv(222, 50%, 80%)
CMYK	cmyk(50.2%, 35.5%, 0%, 20.4%)
CIE-LAB	lab(55.39, 9.45, -40.62)
CIE-LCH	lch(55.39, 41.70, 283.10°)
OKLab	oklab(61.86% -0.008 -0.1145)
OKLCH	oklch(61.86% 0.115 266)
XYZ	xyz(24.2591, 23.3095, 59.7092)
Luminance	0.2331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583CB #CBAD65

analogous

#65B6CB #6583CB #7A65CB

triadic

#6583CB #CB6583 #83CB65

tetradic

#6583CB #CB65B6 #CBAD65 #65CB7A

square

#6583CB #CB65B6 #CBAD65 #65CB7A

split-complementary

#6583CB #CB7A65 #B6CB65

monochromatic

#2E4888 #3D61B6 #6583CB #93A8DA #C1CDEA

Accessibility & contrast

On white

3.71

#6583CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#6583CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583CB

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583CB	#FFFFFF	#000000	##000000
##6583CB	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678ACE

Deuteranopia (green-blind)

#5C80C9

Tritanopia (blue-blind)

#38929D

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #6583cb;
/* rgb */ color: rgb(101, 131, 203);
/* oklch */ color: oklch(61.9% 0.115 266.0);

Tailwind

colors: {
  custom: {
    50: '#97a6db',
    500: '#6583cb',
    950: '#000000',
  },
}

SCSS

$custom: #6583cb;
$custom-light: #97a6db;
$custom-dark: #000000;

JSON

{
  "hex": "#6583cb",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 203
  },
  "hsl": {
    "h": 222.353,
    "s": 49.515,
    "l": 59.608
  },
  "oklch": {
    "l": 0.6186,
    "c": 0.11482,
    "h": 266
  },
  "luminance": 0.23311
}

Semantic roles & 50–950 ramp

primary

#6583CB

secondary

#DACEB2

accent

#B04FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #6583CB

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

Preview Lab → · Contrast checker → · Palette generator →