#587FCB#587FCB

#587FCB is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.3% C 0.124 H 262.7°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#587FCB
RGB	rgb(88, 127, 203)
HSL	hsl(220, 53%, 57%)
HSV	hsv(220, 57%, 80%)
CMYK	cmyk(56.7%, 37.4%, 0%, 20.4%)
CIE-LAB	lab(53.56, 8.97, -43.55)
CIE-LCH	lch(53.56, 44.47, 281.63°)
OKLab	oklab(60.25% -0.0159 -0.1234)
OKLCH	oklch(60.25% 0.124 262.7)
XYZ	xyz(22.3897, 21.5635, 59.4706)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587FCB #CBA458

analogous

#58B9CB #587FCB #6B58CB

triadic

#587FCB #CB587F #7FCB58

tetradic

#587FCB #CB58B9 #CBA458 #58CB6B

square

#587FCB #CB58B9 #CBA458 #58CB6B

split-complementary

#587FCB #CB6B58 #B9CB58

monochromatic

#284681 #375FAF #587FCB #87A3DA #B5C7E8

Accessibility & contrast

On white

3.95

#587FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#587FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587FCB

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587FCB	#FFFFFF	#000000	##000000
##587FCB	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6086CE

Deuteranopia (green-blind)

#517BC9

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #587fcb;
/* rgb */ color: rgb(88, 127, 203);
/* oklch */ color: oklch(60.3% 0.124 262.7);

Tailwind

colors: {
  custom: {
    50: '#8fa3db',
    500: '#587fcb',
    950: '#000000',
  },
}

SCSS

$custom: #587fcb;
$custom-light: #8fa3db;
$custom-dark: #000000;

JSON

{
  "hex": "#587fcb",
  "rgb": {
    "r": 88,
    "g": 127,
    "b": 203
  },
  "hsl": {
    "h": 219.652,
    "s": 52.511,
    "l": 57.059
  },
  "oklch": {
    "l": 0.6025,
    "c": 0.12439,
    "h": 262.7
  },
  "luminance": 0.21565
}

Semantic roles & 50–950 ramp

primary

#587FCB

secondary

#D7C7A8

accent

#AB4CDC

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #587FCB

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

Preview Lab → · Contrast checker → · Palette generator →