#2588BC#2588BC

#2588BC is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.6% C 0.118 H 237.3°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#2588BC
RGB	rgb(37, 136, 188)
HSL	hsl(201, 67%, 44%)
HSV	hsv(201, 80%, 74%)
CMYK	cmyk(80.3%, 27.7%, 0%, 26.3%)
CIE-LAB	lab(53.63, -9.64, -35.02)
CIE-LCH	lch(53.63, 36.32, 254.61°)
OKLab	oklab(59.57% -0.0636 -0.099)
OKLCH	oklch(59.57% 0.118 237.3)
XYZ	xyz(18.6406, 21.6302, 50.7598)
Luminance	0.2163 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2588BC #BC5925

analogous

#25BCA5 #2588BC #253DBC

triadic

#2588BC #BC2588 #88BC25

tetradic

#2588BC #A525BC #BC5925 #3DBC25

square

#2588BC #A525BC #BC5925 #3DBC25

split-complementary

#2588BC #BC253D #BCA525

monochromatic

#113E56 #1B6389 #2588BC #44A6DA #77BFE4

Accessibility & contrast

On white

3.94

#2588BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#2588BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2588BC

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2588BC	#FFFFFF	#000000	##000000
##2588BC	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F88BE

Deuteranopia (green-blind)

#5B7ABB

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #2588bc;
/* rgb */ color: rgb(37, 136, 188);
/* oklch */ color: oklch(59.6% 0.118 237.3);

Tailwind

colors: {
  custom: {
    50: '#78aad0',
    500: '#2588bc',
    950: '#000000',
  },
}

SCSS

$custom: #2588bc;
$custom-light: #78aad0;
$custom-dark: #000000;

JSON

{
  "hex": "#2588bc",
  "rgb": {
    "r": 37,
    "g": 136,
    "b": 188
  },
  "hsl": {
    "h": 200.662,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.59565,
    "c": 0.11768,
    "h": 237.3
  },
  "luminance": 0.21632
}

Semantic roles & 50–950 ramp

primary

#2588BC

secondary

#CC9071

accent

#793EEA

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #2588BC

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

Preview Lab → · Contrast checker → · Palette generator →