#6587DC#6587DC

#6587DC is a light, vivid blue. Relative luminance 0.253; OKLCH L 63.6% C 0.134 H 266.2°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#6587DC
RGB	rgb(101, 135, 220)
HSL	hsl(223, 63%, 63%)
HSV	hsv(223, 54%, 86%)
CMYK	cmyk(54.1%, 38.6%, 0%, 13.7%)
CIE-LAB	lab(57.33, 12.39, -47.13)
CIE-LCH	lch(57.33, 48.73, 284.73°)
OKLab	oklab(63.64% -0.0088 -0.1335)
OKLCH	oklch(63.64% 0.134 266.2)
XYZ	xyz(26.9448, 25.2600, 71.1520)
Luminance	0.2526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6587DC #DCBA65

analogous

#65C3DC #6587DC #7E65DC

triadic

#6587DC #DC6587 #87DC65

tetradic

#6587DC #DC65C3 #DCBA65 #65DC7E

square

#6587DC #DC65C3 #DCBA65 #65DC7E

split-complementary

#6587DC #DC7E65 #C3DC65

monochromatic

#2549A2 #3360D1 #6587DC #97AEE7 #C9D5F3

Accessibility & contrast

On white

3.47

#6587DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#6587DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6587DC

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6587DC	#FFFFFF	#000000	##000000
##6587DC	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#648FDF

Deuteranopia (green-blind)

#5685DA

Tritanopia (blue-blind)

#239AA7

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6587dc;
/* rgb */ color: rgb(101, 135, 220);
/* oklch */ color: oklch(63.6% 0.134 266.2);

Tailwind

colors: {
  custom: {
    50: '#99a9e7',
    500: '#6587dc',
    950: '#000000',
  },
}

SCSS

$custom: #6587dc;
$custom-light: #99a9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#6587dc",
  "rgb": {
    "r": 101,
    "g": 135,
    "b": 220
  },
  "hsl": {
    "h": 222.857,
    "s": 62.963,
    "l": 62.941
  },
  "oklch": {
    "l": 0.63636,
    "c": 0.1338,
    "h": 266.2
  },
  "luminance": 0.25262
}

Semantic roles & 50–950 ramp

primary

#6587DC

secondary

#E4D8B9

accent

#981BCB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #6587DC

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

Preview Lab → · Contrast checker → · Palette generator →