#1F579E#1F579E

#1F579E is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.129 H 256.2°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#1F579E
RGB	rgb(31, 87, 158)
HSL	hsl(214, 67%, 37%)
HSV	hsv(214, 80%, 62%)
CMYK	cmyk(80.4%, 44.9%, 0%, 38%)
CIE-LAB	lab(37.07, 8.41, -43.73)
CIE-LCH	lch(37.07, 44.53, 280.89°)
OKLab	oklab(45.98% -0.0308 -0.1254)
OKLCH	oklch(45.98% 0.129 256.2)
XYZ	xyz(10.1425, 9.5751, 33.6547)
Luminance	0.0958 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F579E #9E661F

analogous

#1F979E #1F579E #261F9E

triadic

#1F579E #9E1F57 #579E1F

tetradic

#1F579E #9E1F97 #9E661F #1F9E26

square

#1F579E #9E1F97 #9E661F #1F9E26

split-complementary

#1F579E #9E261F #979E1F

monochromatic

#0B1F38 #153B6B #1F579E #2973D1 #5994DE

Accessibility & contrast

On white

7.20

#1F579E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#1F579E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F579E

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F579E	#FFFFFF	#000000	##FFFFFF
##1F579E	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325DA1

Deuteranopia (green-blind)

#18529D

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f579e;
/* rgb */ color: rgb(31, 87, 158);
/* oklch */ color: oklch(46.0% 0.129 256.2);

Tailwind

colors: {
  custom: {
    50: '#6f85bb',
    500: '#1f579e',
    950: '#000000',
  },
}

SCSS

$custom: #1f579e;
$custom-light: #6f85bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f579e",
  "rgb": {
    "r": 31,
    "g": 87,
    "b": 158
  },
  "hsl": {
    "h": 213.543,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.45976,
    "c": 0.12909,
    "h": 256.2
  },
  "luminance": 0.09576
}

Semantic roles & 50–950 ramp

primary

#1F579E

secondary

#C29356

accent

#9E3EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F579E

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

Preview Lab → · Contrast checker → · Palette generator →