#6583BF#6583BF

#6583BF is a mid, moderate blue. Relative luminance 0.228; OKLCH L 61.2% C 0.098 H 263.5°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#6583BF
RGB	rgb(101, 131, 191)
HSL	hsl(220, 41%, 57%)
HSV	hsv(220, 47%, 75%)
CMYK	cmyk(47.1%, 31.4%, 0%, 25.1%)
CIE-LAB	lab(54.82, 5.78, -34.69)
CIE-LCH	lch(54.82, 35.17, 279.46°)
OKLab	oklab(61.23% -0.0112 -0.0973)
OKLCH	oklch(61.23% 0.098 263.5)
XYZ	xyz(22.8840, 22.7595, 52.4673)
Luminance	0.2276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583BF #BFA165

analogous

#65B0BF #6583BF #7465BF

triadic

#6583BF #BF6583 #83BF65

tetradic

#6583BF #BF65B0 #BFA165 #65BF74

square

#6583BF #BF65B0 #BFA165 #65BF74

split-complementary

#6583BF #BF7465 #B0BF65

monochromatic

#324978 #4464A3 #6583BF #90A6D1 #BBC9E3

Accessibility & contrast

On white

3.78

#6583BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#6583BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583BF

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583BF	#FFFFFF	#000000	##000000
##6583BF	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D88C2

Deuteranopia (green-blind)

#637FBE

Tritanopia (blue-blind)

#419098

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #6583bf;
/* rgb */ color: rgb(101, 131, 191);
/* oklch */ color: oklch(61.2% 0.098 263.5);

Tailwind

colors: {
  custom: {
    50: '#95a6d2',
    500: '#6583bf',
    950: '#000000',
  },
}

SCSS

$custom: #6583bf;
$custom-light: #95a6d2;
$custom-dark: #000000;

JSON

{
  "hex": "#6583bf",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 191
  },
  "hsl": {
    "h": 220,
    "s": 41.284,
    "l": 57.255
  },
  "oklch": {
    "l": 0.61234,
    "c": 0.09797,
    "h": 263.5
  },
  "luminance": 0.22761
}

Semantic roles & 50–950 ramp

primary

#6583BF

secondary

#D2C6AE

accent

#A857D1

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E0F14

muted

#7E7F82

Preview Lab

Preview with #6583BF

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

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