#1D589E#1D589E

#1D589E is a mid, vivid cyan. Relative luminance 0.097; OKLCH L 46.2% C 0.128 H 255.2°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D589E
RGB	rgb(29, 88, 158)
HSL	hsl(213, 69%, 37%)
HSV	hsv(213, 82%, 62%)
CMYK	cmyk(81.6%, 44.3%, 0%, 38%)
CIE-LAB	lab(37.31, 7.54, -43.34)
CIE-LCH	lch(37.31, 43.99, 279.87°)
OKLab	oklab(46.15% -0.0328 -0.1242)
OKLCH	oklch(46.15% 0.128 255.2)
XYZ	xyz(10.1657, 9.7080, 33.6792)
Luminance	0.0971 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D589E #9E631D

analogous

#1D999E #1D589E #221D9E

triadic

#1D589E #9E1D58 #589E1D

tetradic

#1D589E #9E1D99 #9E631D #1D9E22

square

#1D589E #9E1D99 #9E631D #1D9E22

split-complementary

#1D589E #9E221D #999E1D

monochromatic

#0A1E37 #143B6A #1D589E #2675D2 #5695E0

Accessibility & contrast

On white

7.14

#1D589E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#1D589E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D589E

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D589E	#FFFFFF	#000000	##FFFFFF
##1D589E	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345EA1

Deuteranopia (green-blind)

#1A529D

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1d589e;
/* rgb */ color: rgb(29, 88, 158);
/* oklch */ color: oklch(46.2% 0.128 255.2);

Tailwind

colors: {
  custom: {
    50: '#6f86bb',
    500: '#1d589e',
    950: '#000000',
  },
}

SCSS

$custom: #1d589e;
$custom-light: #6f86bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d589e",
  "rgb": {
    "r": 29,
    "g": 88,
    "b": 158
  },
  "hsl": {
    "h": 212.558,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.4615,
    "c": 0.12847,
    "h": 255.2
  },
  "luminance": 0.09709
}

Semantic roles & 50–950 ramp

primary

#1D589E

secondary

#C39054

accent

#9B3CEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1D589E

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

Preview Lab → · Contrast checker → · Palette generator →