#2588B2#2588B2

#2588B2 is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.1% C 0.108 H 231.6°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#2588B2
RGB	rgb(37, 136, 178)
HSL	hsl(198, 66%, 42%)
HSV	hsv(198, 79%, 70%)
CMYK	cmyk(79.2%, 23.6%, 0%, 30.2%)
CIE-LAB	lab(53.18, -13.21, -30.00)
CIE-LCH	lch(53.18, 32.78, 246.23°)
OKLab	oklab(59.06% -0.067 -0.0845)
OKLCH	oklch(59.06% 0.108 231.6)
XYZ	xyz(17.5997, 21.2138, 45.2779)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2588B2 #B24F25

analogous

#25B295 #2588B2 #2542B2

triadic

#2588B2 #B22588 #88B225

tetradic

#2588B2 #9525B2 #B24F25 #42B225

square

#2588B2 #9525B2 #B24F25 #42B225

split-complementary

#2588B2 #B22542 #B29525

monochromatic

#103B4D #1A617F #2588B2 #3DA9D7 #70C0E1

Accessibility & contrast

On white

4.01

#2588B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#2588B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2588B2

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2588B2	#FFFFFF	#000000	##000000
##2588B2	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7386B4

Deuteranopia (green-blind)

#6079B1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #2588b2;
/* rgb */ color: rgb(37, 136, 178);
/* oklch */ color: oklch(59.1% 0.108 231.6);

Tailwind

colors: {
  custom: {
    50: '#76aac9',
    500: '#2588b2',
    950: '#000000',
  },
}

SCSS

$custom: #2588b2;
$custom-light: #76aac9;
$custom-dark: #000000;

JSON

{
  "hex": "#2588b2",
  "rgb": {
    "r": 37,
    "g": 136,
    "b": 178
  },
  "hsl": {
    "h": 197.872,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.59059,
    "c": 0.10786,
    "h": 231.6
  },
  "luminance": 0.21216
}

Semantic roles & 50–950 ramp

primary

#2588B2

secondary

#C8876B

accent

#723FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2588B2

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

Preview Lab → · Contrast checker → · Palette generator →