#1F5579#1F5579

#1F5579 is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.1% C 0.082 H 241.6°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#1F5579
RGB	rgb(31, 85, 121)
HSL	hsl(204, 59%, 30%)
HSV	hsv(204, 74%, 47%)
CMYK	cmyk(74.4%, 29.8%, 0%, 52.5%)
CIE-LAB	lab(34.33, -4.76, -25.53)
CIE-LCH	lch(34.33, 25.97, 259.44°)
OKLab	oklab(43.14% -0.039 -0.0721)
OKLCH	oklch(43.14% 0.082 241.6)
XYZ	xyz(7.2634, 8.1680, 19.2792)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5579 #79431F

analogous

#1F7970 #1F5579 #1F2879

triadic

#1F5579 #791F55 #55791F

tetradic

#1F5579 #701F79 #79431F #28791F

square

#1F5579 #701F79 #79431F #28791F

split-complementary

#1F5579 #791F28 #79701F

monochromatic

#061118 #133348 #1F5579 #2B77AA #4397CF

Accessibility & contrast

On white

7.97

#1F5579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1F5579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5579

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5579	#FFFFFF	#000000	##FFFFFF
##1F5579	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44567B

Deuteranopia (green-blind)

#384D78

Tritanopia (blue-blind)

#005E62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f5579;
/* rgb */ color: rgb(31, 85, 121);
/* oklch */ color: oklch(43.1% 0.082 241.6);

Tailwind

colors: {
  custom: {
    50: '#6784a0',
    500: '#1f5579',
    950: '#000000',
  },
}

SCSS

$custom: #1f5579;
$custom-light: #6784a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5579",
  "rgb": {
    "r": 31,
    "g": 85,
    "b": 121
  },
  "hsl": {
    "h": 204,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.43144,
    "c": 0.08197,
    "h": 241.6
  },
  "luminance": 0.08169
}

Semantic roles & 50–950 ramp

primary

#1F5579

secondary

#AC7047

accent

#8445E2

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1F5579

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

Preview Lab → · Contrast checker → · Palette generator →