#1D579D#1D579D

#1D579D is a mid, vivid cyan. Relative luminance 0.095; OKLCH L 45.8% C 0.128 H 255.5°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#1D579D
RGB	rgb(29, 87, 157)
HSL	hsl(213, 69%, 36%)
HSV	hsv(213, 82%, 62%)
CMYK	cmyk(81.5%, 44.6%, 0%, 38.4%)
CIE-LAB	lab(36.95, 7.80, -43.32)
CIE-LCH	lch(36.95, 44.02, 280.21°)
OKLab	oklab(45.85% -0.0321 -0.1242)
OKLCH	oklch(45.85% 0.128 255.5)
XYZ	xyz(9.9984, 9.5107, 33.2005)
Luminance	0.0951 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D579D #9D631D

analogous

#1D979D #1D579D #231D9D

triadic

#1D579D #9D1D57 #579D1D

tetradic

#1D579D #9D1D97 #9D631D #1D9D23

square

#1D579D #9D1D97 #9D631D #1D9D23

split-complementary

#1D579D #9D231D #979D1D

monochromatic

#0A1E36 #133A69 #1D579D #2774D1 #5594E0

Accessibility & contrast

On white

7.24

#1D579D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1D579D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D579D

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D579D	#FFFFFF	#000000	##FFFFFF
##1D579D	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335DA0

Deuteranopia (green-blind)

#19529C

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1d579d;
/* rgb */ color: rgb(29, 87, 157);
/* oklch */ color: oklch(45.8% 0.128 255.5);

Tailwind

colors: {
  custom: {
    50: '#6e85ba',
    500: '#1d579d',
    950: '#000000',
  },
}

SCSS

$custom: #1d579d;
$custom-light: #6e85ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d579d",
  "rgb": {
    "r": 29,
    "g": 87,
    "b": 157
  },
  "hsl": {
    "h": 212.813,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.45848,
    "c": 0.12828,
    "h": 255.5
  },
  "luminance": 0.09512
}

Semantic roles & 50–950 ramp

primary

#1D579D

secondary

#C39053

accent

#9C3CEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1D579D

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

Preview Lab → · Contrast checker → · Palette generator →