#2587B0#2587B0

#2587B0 is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 58.7% C 0.107 H 231.2°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#2587B0
RGB	rgb(37, 135, 176)
HSL	hsl(198, 65%, 42%)
HSV	hsv(198, 79%, 69%)
CMYK	cmyk(79%, 23.3%, 0%, 31%)
CIE-LAB	lab(52.79, -13.36, -29.46)
CIE-LCH	lch(52.79, 32.35, 245.61°)
OKLab	oklab(58.72% -0.0668 -0.0829)
OKLCH	oklch(58.72% 0.107 231.2)
XYZ	xyz(17.2602, 20.8537, 44.1814)
Luminance	0.2086 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2587B0 #B04E25

analogous

#25B094 #2587B0 #2542B0

triadic

#2587B0 #B02587 #87B025

tetradic

#2587B0 #9425B0 #B04E25 #42B025

square

#2587B0 #9425B0 #B04E25 #42B025

split-complementary

#2587B0 #B02542 #B09425

monochromatic

#10394B #1A607D #2587B0 #3CA9D6 #6FBFE1

Accessibility & contrast

On white

4.06

#2587B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#2587B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2587B0

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2587B0	#FFFFFF	#000000	##000000
##2587B0	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7285B2

Deuteranopia (green-blind)

#6078AF

Tritanopia (blue-blind)

#009295

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #2587b0;
/* rgb */ color: rgb(37, 135, 176);
/* oklch */ color: oklch(58.7% 0.107 231.2);

Tailwind

colors: {
  custom: {
    50: '#76aac7',
    500: '#2587b0',
    950: '#000000',
  },
}

SCSS

$custom: #2587b0;
$custom-light: #76aac7;
$custom-dark: #000000;

JSON

{
  "hex": "#2587b0",
  "rgb": {
    "r": 37,
    "g": 135,
    "b": 176
  },
  "hsl": {
    "h": 197.698,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.58716,
    "c": 0.10651,
    "h": 231.2
  },
  "luminance": 0.20856
}

Semantic roles & 50–950 ramp

primary

#2587B0

secondary

#C7856A

accent

#7140E8

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2587B0

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

Preview Lab → · Contrast checker → · Palette generator →