#587ECB#587ECB

#587ECB is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.0% C 0.126 H 263.2°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#587ECB
RGB	rgb(88, 126, 203)
HSL	hsl(220, 53%, 57%)
HSV	hsv(220, 57%, 80%)
CMYK	cmyk(56.7%, 37.9%, 0%, 20.4%)
CIE-LAB	lab(53.28, 9.57, -43.99)
CIE-LCH	lch(53.28, 45.02, 282.27°)
OKLab	oklab(60.04% -0.0148 -0.1247)
OKLCH	oklch(60.04% 0.126 263.2)
XYZ	xyz(22.2612, 21.3064, 59.4278)
Luminance	0.2131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587ECB #CBA558

analogous

#58B7CB #587ECB #6C58CB

triadic

#587ECB #CB587E #7ECB58

tetradic

#587ECB #CB58B7 #CBA558 #58CB6C

square

#587ECB #CB58B7 #CBA558 #58CB6C

split-complementary

#587ECB #CB6C58 #B7CB58

monochromatic

#284581 #375EAF #587ECB #87A2DA #B5C6E8

Accessibility & contrast

On white

3.99

#587ECB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#587ECB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587ECB

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587ECB	#FFFFFF	#000000	##000000
##587ECB	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E85CE

Deuteranopia (green-blind)

#507AC9

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #587ecb;
/* rgb */ color: rgb(88, 126, 203);
/* oklch */ color: oklch(60.0% 0.126 263.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#587ecb",
  "rgb": {
    "r": 88,
    "g": 126,
    "b": 203
  },
  "hsl": {
    "h": 220.174,
    "s": 52.511,
    "l": 57.059
  },
  "oklch": {
    "l": 0.60035,
    "c": 0.12553,
    "h": 263.2
  },
  "luminance": 0.21308
}

Semantic roles & 50–950 ramp

primary

#587ECB

secondary

#D7C7A8

accent

#AC4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #587ECB

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

Preview Lab → · Contrast checker → · Palette generator →