#1589B4#1589B4

#1589B4 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.1% C 0.113 H 230.3°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#1589B4
RGB	rgb(21, 137, 180)
HSL	hsl(196, 79%, 39%)
HSV	hsv(196, 88%, 71%)
CMYK	cmyk(88.3%, 23.9%, 0%, 29.4%)
CIE-LAB	lab(53.32, -14.42, -30.95)
CIE-LCH	lch(53.32, 34.14, 245.02°)
OKLab	oklab(59.13% -0.0724 -0.0873)
OKLCH	oklch(59.13% 0.113 230.3)
XYZ	xyz(17.4897, 21.3438, 46.3691)
Luminance	0.2135 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1589B4 #B44015

analogous

#15B48F #1589B4 #153AB4

triadic

#1589B4 #B41589 #89B415

tetradic

#1589B4 #8F15B4 #B44015 #3AB415

square

#1589B4 #8F15B4 #B44015 #3AB415

split-complementary

#1589B4 #B4153A #B48F15

monochromatic

#083646 #0F5F7D #1589B4 #21B0E5 #58C4EC

Accessibility & contrast

On white

3.99

#1589B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#1589B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1589B4

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1589B4	#FFFFFF	#000000	##000000
##1589B4	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B6

Deuteranopia (green-blind)

#5F79B3

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #1589b4;
/* rgb */ color: rgb(21, 137, 180);
/* oklch */ color: oklch(59.1% 0.113 230.3);

Tailwind

colors: {
  custom: {
    50: '#73abca',
    500: '#1589b4',
    950: '#000000',
  },
}

SCSS

$custom: #1589b4;
$custom-light: #73abca;
$custom-dark: #000000;

JSON

{
  "hex": "#1589b4",
  "rgb": {
    "r": 21,
    "g": 137,
    "b": 180
  },
  "hsl": {
    "h": 196.226,
    "s": 79.104,
    "l": 39.412
  },
  "oklch": {
    "l": 0.59127,
    "c": 0.11345,
    "h": 230.3
  },
  "luminance": 0.21346
}

Semantic roles & 50–950 ramp

primary

#1589B4

secondary

#CF7756

accent

#6732F6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1589B4

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

Preview Lab → · Contrast checker → · Palette generator →