#2587B2#2587B2

#2587B2 is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 58.8% C 0.108 H 232.4°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#2587B2
RGB	rgb(37, 135, 178)
HSL	hsl(198, 66%, 42%)
HSV	hsv(198, 79%, 70%)
CMYK	cmyk(79.2%, 24.2%, 0%, 30.2%)
CIE-LAB	lab(52.88, -12.65, -30.48)
CIE-LCH	lch(52.88, 33.00, 247.45°)
OKLab	oklab(58.81% -0.0661 -0.0859)
OKLCH	oklch(58.81% 0.108 232.4)
XYZ	xyz(17.4595, 20.9335, 45.2312)
Luminance	0.2094 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2587B2 #B25025

analogous

#25B297 #2587B2 #2541B2

triadic

#2587B2 #B22587 #87B225

tetradic

#2587B2 #9725B2 #B25025 #41B225

square

#2587B2 #9725B2 #B25025 #41B225

split-complementary

#2587B2 #B22541 #B29725

monochromatic

#103A4D #1A617F #2587B2 #3DA8D7 #70BFE1

Accessibility & contrast

On white

4.05

#2587B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#2587B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2587B2

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2587B2	#FFFFFF	#000000	##000000
##2587B2	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7186B4

Deuteranopia (green-blind)

#5F78B1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #2587b2;
/* rgb */ color: rgb(37, 135, 178);
/* oklch */ color: oklch(58.8% 0.108 232.4);

Tailwind

colors: {
  custom: {
    50: '#76aac9',
    500: '#2587b2',
    950: '#000000',
  },
}

SCSS

$custom: #2587b2;
$custom-light: #76aac9;
$custom-dark: #000000;

JSON

{
  "hex": "#2587b2",
  "rgb": {
    "r": 37,
    "g": 135,
    "b": 178
  },
  "hsl": {
    "h": 198.298,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.58814,
    "c": 0.10837,
    "h": 232.4
  },
  "luminance": 0.20936
}

Semantic roles & 50–950 ramp

primary

#2587B2

secondary

#C8876B

accent

#733FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2587B2

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

Preview Lab → · Contrast checker → · Palette generator →