#6591DB#6591DB

#6591DB is a light, vivid blue. Relative luminance 0.281; OKLCH L 65.7% C 0.121 H 260.3°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#6591DB
RGB	rgb(101, 145, 219)
HSL	hsl(218, 62%, 63%)
HSV	hsv(218, 54%, 86%)
CMYK	cmyk(53.9%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(60.01, 6.16, -42.34)
CIE-LCH	lch(60.01, 42.79, 278.28°)
OKLab	oklab(65.7% -0.0203 -0.1195)
OKLCH	oklch(65.7% 0.121 260.3)
XYZ	xyz(28.2740, 28.1298, 70.9438)
Luminance	0.2813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591DB #DBAF65

analogous

#65CCDB #6591DB #7465DB

triadic

#6591DB #DB6591 #91DB65

tetradic

#6591DB #DB65CC #DBAF65 #65DB74

square

#6591DB #DB65CC #DBAF65 #65DB74

split-complementary

#6591DB #DB7465 #CCDB65

monochromatic

#2553A0 #336ECF #6591DB #97B4E7 #C8D8F2

Accessibility & contrast

On white

3.17

#6591DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#6591DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591DB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591DB	#FFFFFF	#000000	##000000
##6591DB	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7397DE

Deuteranopia (green-blind)

#658CD9

Tritanopia (blue-blind)

#21A1AC

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #6591db;
/* rgb */ color: rgb(101, 145, 219);
/* oklch */ color: oklch(65.7% 0.121 260.3);

Tailwind

colors: {
  custom: {
    50: '#98b0e6',
    500: '#6591db',
    950: '#000000',
  },
}

SCSS

$custom: #6591db;
$custom-light: #98b0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#6591db",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 217.627,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.65696,
    "c": 0.12119,
    "h": 260.3
  },
  "luminance": 0.28132
}

Semantic roles & 50–950 ramp

primary

#6591DB

secondary

#E3D3B9

accent

#891CCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6591DB

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

Preview Lab → · Contrast checker → · Palette generator →