#1F579F#1F579F

#1F579F is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.130 H 256.4°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#1F579F
RGB	rgb(31, 87, 159)
HSL	hsl(214, 67%, 37%)
HSV	hsv(214, 81%, 62%)
CMYK	cmyk(80.5%, 45.3%, 0%, 37.6%)
CIE-LAB	lab(37.13, 8.81, -44.22)
CIE-LCH	lch(37.13, 45.09, 281.27°)
OKLab	oklab(46.05% -0.0306 -0.1268)
OKLCH	oklch(46.05% 0.13 256.4)
XYZ	xyz(10.2290, 9.6097, 34.1099)
Luminance	0.0961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F579F #9F671F

analogous

#1F979F #1F579F #271F9F

triadic

#1F579F #9F1F57 #579F1F

tetradic

#1F579F #9F1F97 #9F671F #1F9F27

square

#1F579F #9F1F97 #9F671F #1F9F27

split-complementary

#1F579F #9F271F #979F1F

monochromatic

#0B1F39 #153B6C #1F579F #2973D2 #5A94DF

Accessibility & contrast

On white

7.19

#1F579F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#1F579F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F579F

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F579F	#FFFFFF	#000000	##FFFFFF
##1F579F	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325EA2

Deuteranopia (green-blind)

#16529E

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f579f;
/* rgb */ color: rgb(31, 87, 159);
/* oklch */ color: oklch(46.0% 0.130 256.4);

Tailwind

colors: {
  custom: {
    50: '#7085bc',
    500: '#1f579f',
    950: '#000000',
  },
}

SCSS

$custom: #1f579f;
$custom-light: #7085bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f579f",
  "rgb": {
    "r": 31,
    "g": 87,
    "b": 159
  },
  "hsl": {
    "h": 213.75,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.46046,
    "c": 0.13046,
    "h": 256.4
  },
  "luminance": 0.09611
}

Semantic roles & 50–950 ramp

primary

#1F579F

secondary

#C39457

accent

#9F3EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F579F

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

Preview Lab → · Contrast checker → · Palette generator →