#2589B4#2589B4

#2589B4 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.4% C 0.109 H 232.0°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#2589B4
RGB	rgb(37, 137, 180)
HSL	hsl(198, 66%, 43%)
HSV	hsv(198, 79%, 71%)
CMYK	cmyk(79.4%, 23.9%, 0%, 29.4%)
CIE-LAB	lab(53.58, -13.07, -30.54)
CIE-LCH	lch(53.58, 33.21, 246.83°)
OKLab	oklab(59.4% -0.0673 -0.086)
OKLCH	oklch(59.4% 0.109 232)
XYZ	xyz(17.9435, 21.5777, 46.3904)
Luminance	0.2158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2589B4 #B45025

analogous

#25B498 #2589B4 #2541B4

triadic

#2589B4 #B42589 #89B425

tetradic

#2589B4 #9825B4 #B45025 #41B425

square

#2589B4 #9825B4 #B45025 #41B425

split-complementary

#2589B4 #B42541 #B49825

monochromatic

#103C4E #1B6281 #2589B4 #3FAAD7 #71C0E2

Accessibility & contrast

On white

3.95

#2589B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#2589B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2589B4

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2589B4	#FFFFFF	#000000	##000000
##2589B4	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B6

Deuteranopia (green-blind)

#607AB3

Tritanopia (blue-blind)

#009598

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #2589b4;
/* rgb */ color: rgb(37, 137, 180);
/* oklch */ color: oklch(59.4% 0.109 232.0);

Tailwind

colors: {
  custom: {
    50: '#77abca',
    500: '#2589b4',
    950: '#000000',
  },
}

SCSS

$custom: #2589b4;
$custom-light: #77abca;
$custom-dark: #000000;

JSON

{
  "hex": "#2589b4",
  "rgb": {
    "r": 37,
    "g": 137,
    "b": 180
  },
  "hsl": {
    "h": 198.042,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.59402,
    "c": 0.10921,
    "h": 232
  },
  "luminance": 0.2158
}

Semantic roles & 50–950 ramp

primary

#2589B4

secondary

#C9886C

accent

#723FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2589B4

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

Preview Lab → · Contrast checker → · Palette generator →