#2589B3#2589B3

#2589B3 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.4% C 0.108 H 231.3°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#2589B3
RGB	rgb(37, 137, 179)
HSL	hsl(198, 66%, 42%)
HSV	hsv(198, 79%, 70%)
CMYK	cmyk(79.3%, 23.5%, 0%, 29.8%)
CIE-LAB	lab(53.53, -13.42, -30.03)
CIE-LCH	lch(53.53, 32.89, 245.92°)
OKLab	oklab(59.35% -0.0676 -0.0846)
OKLCH	oklch(59.35% 0.108 231.3)
XYZ	xyz(17.8420, 21.5371, 45.8558)
Luminance	0.2154 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2589B3 #B34F25

analogous

#25B396 #2589B3 #2542B3

triadic

#2589B3 #B32589 #89B325

tetradic

#2589B3 #9625B3 #B34F25 #42B325

square

#2589B3 #9625B3 #B34F25 #42B325

split-complementary

#2589B3 #B32542 #B39625

monochromatic

#103B4E #1B6280 #2589B3 #3EAAD7 #71C0E2

Accessibility & contrast

On white

3.96

#2589B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#2589B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2589B3

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2589B3	#FFFFFF	#000000	##000000
##2589B3	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7487B5

Deuteranopia (green-blind)

#617AB2

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #2589b3;
/* rgb */ color: rgb(37, 137, 179);
/* oklch */ color: oklch(59.4% 0.108 231.3);

Tailwind

colors: {
  custom: {
    50: '#77abca',
    500: '#2589b3',
    950: '#000000',
  },
}

SCSS

$custom: #2589b3;
$custom-light: #77abca;
$custom-dark: #000000;

JSON

{
  "hex": "#2589b3",
  "rgb": {
    "r": 37,
    "g": 137,
    "b": 179
  },
  "hsl": {
    "h": 197.746,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.59352,
    "c": 0.10829,
    "h": 231.3
  },
  "luminance": 0.21539
}

Semantic roles & 50–950 ramp

primary

#2589B3

secondary

#C8876B

accent

#713FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2589B3

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

Preview Lab → · Contrast checker → · Palette generator →