#1B589D#1B589D

#1B589D is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.128 H 254.5°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B589D
RGB	rgb(27, 88, 157)
HSL	hsl(212, 71%, 36%)
HSV	hsv(212, 83%, 62%)
CMYK	cmyk(82.8%, 43.9%, 0%, 38.4%)
CIE-LAB	lab(37.20, 6.94, -42.93)
CIE-LCH	lch(37.20, 43.48, 279.18°)
OKLab	oklab(46.03% -0.034 -0.123)
OKLCH	oklch(46.03% 0.128 254.5)
XYZ	xyz(10.0252, 9.6456, 33.2251)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B589D #9D601B

analogous

#1B999D #1B589D #1F1B9D

triadic

#1B589D #9D1B58 #589D1B

tetradic

#1B589D #9D1B99 #9D601B #1B9D1F

square

#1B589D #9D1B99 #9D601B #1B9D1F

split-complementary

#1B589D #9D1F1B #999D1B

monochromatic

#091D35 #123B69 #1B589D #2475D1 #5195E1

Accessibility & contrast

On white

7.17

#1B589D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1B589D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B589D

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B589D	#FFFFFF	#000000	##FFFFFF
##1B589D	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355EA0

Deuteranopia (green-blind)

#1B529C

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b589d;
/* rgb */ color: rgb(27, 88, 157);
/* oklch */ color: oklch(46.0% 0.128 254.5);

Tailwind

colors: {
  custom: {
    50: '#6e86ba',
    500: '#1b589d',
    950: '#000000',
  },
}

SCSS

$custom: #1b589d;
$custom-light: #6e86ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1b589d",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 157
  },
  "hsl": {
    "h": 211.846,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.46026,
    "c": 0.12765,
    "h": 254.5
  },
  "luminance": 0.09647
}

Semantic roles & 50–950 ramp

primary

#1B589D

secondary

#C48D50

accent

#993AED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1B589D

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

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