#1F59A0#1F59A0

#1F59A0 is a mid, vivid cyan. Relative luminance 0.100; OKLCH L 46.6% C 0.129 H 255.6°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1F59A0
RGB	rgb(31, 89, 160)
HSL	hsl(213, 68%, 37%)
HSV	hsv(213, 81%, 63%)
CMYK	cmyk(80.6%, 44.4%, 0%, 37.3%)
CIE-LAB	lab(37.79, 7.89, -43.76)
CIE-LCH	lch(37.79, 44.47, 280.22°)
OKLab	oklab(46.58% -0.0321 -0.1254)
OKLCH	oklch(46.58% 0.129 255.6)
XYZ	xyz(10.4803, 9.9729, 34.6235)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F59A0 #A0661F

analogous

#1F9AA0 #1F59A0 #251FA0

triadic

#1F59A0 #A01F59 #59A01F

tetradic

#1F59A0 #A01F9A #A0661F #1FA025

square

#1F59A0 #A01F9A #A0661F #1FA025

split-complementary

#1F59A0 #A0251F #9AA01F

monochromatic

#0B2039 #153C6D #1F59A0 #2976D3 #5A96DF

Accessibility & contrast

On white

7.01

#1F59A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#1F59A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F59A0

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F59A0	#FFFFFF	#000000	##FFFFFF
##1F59A0	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355FA3

Deuteranopia (green-blind)

#1B549F

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1f59a0;
/* rgb */ color: rgb(31, 89, 160);
/* oklch */ color: oklch(46.6% 0.129 255.6);

Tailwind

colors: {
  custom: {
    50: '#7087bc',
    500: '#1f59a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f59a0;
$custom-light: #7087bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f59a0",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 160
  },
  "hsl": {
    "h": 213.023,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.46579,
    "c": 0.12946,
    "h": 255.6
  },
  "luminance": 0.09974
}

Semantic roles & 50–950 ramp

primary

#1F59A0

secondary

#C39358

accent

#9D3DEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F59A0

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

Preview Lab → · Contrast checker → · Palette generator →