#1F589E#1F589E

#1F589E is a mid, vivid cyan. Relative luminance 0.097; OKLCH L 46.2% C 0.128 H 255.7°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#1F589E
RGB	rgb(31, 88, 158)
HSL	hsl(213, 67%, 37%)
HSV	hsv(213, 80%, 62%)
CMYK	cmyk(80.4%, 44.3%, 0%, 38%)
CIE-LAB	lab(37.37, 7.76, -43.25)
CIE-LCH	lch(37.37, 43.94, 280.17°)
OKLab	oklab(46.21% -0.0316 -0.1239)
OKLCH	oklch(46.21% 0.128 255.7)
XYZ	xyz(10.2241, 9.7382, 33.6819)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F589E #9E651F

analogous

#1F989E #1F589E #261F9E

triadic

#1F589E #9E1F58 #589E1F

tetradic

#1F589E #9E1F98 #9E651F #1F9E26

square

#1F589E #9E1F98 #9E651F #1F9E26

split-complementary

#1F589E #9E261F #989E1F

monochromatic

#0B1F38 #153C6B #1F589E #2974D1 #5995DE

Accessibility & contrast

On white

7.12

#1F589E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#1F589E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F589E

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F589E	#FFFFFF	#000000	##FFFFFF
##1F589E	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345EA1

Deuteranopia (green-blind)

#1B539D

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f589e;
/* rgb */ color: rgb(31, 88, 158);
/* oklch */ color: oklch(46.2% 0.128 255.7);

Tailwind

colors: {
  custom: {
    50: '#6f86bb',
    500: '#1f589e',
    950: '#000000',
  },
}

SCSS

$custom: #1f589e;
$custom-light: #6f86bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f589e",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 158
  },
  "hsl": {
    "h": 213.071,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.46208,
    "c": 0.12791,
    "h": 255.7
  },
  "luminance": 0.09739
}

Semantic roles & 50–950 ramp

primary

#1F589E

secondary

#C29256

accent

#9D3EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F589E

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

Preview Lab → · Contrast checker → · Palette generator →