#1B569F#1B569F

#1B569F is a mid, vivid cyan. Relative luminance 0.094; OKLCH L 45.7% C 0.133 H 256.1°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B569F
RGB	rgb(27, 86, 159)
HSL	hsl(213, 71%, 36%)
HSV	hsv(213, 83%, 62%)
CMYK	cmyk(83%, 45.9%, 0%, 37.6%)
CIE-LAB	lab(36.73, 9.06, -44.88)
CIE-LCH	lch(36.73, 45.79, 281.41°)
OKLab	oklab(45.7% -0.032 -0.1288)
OKLCH	oklch(45.7% 0.133 256.1)
XYZ	xyz(10.0355, 9.3906, 34.0778)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B569F #9F641B

analogous

#1B989F #1B569F #221B9F

triadic

#1B569F #9F1B56 #569F1B

tetradic

#1B569F #9F1B98 #9F641B #1B9F22

square

#1B569F #9F1B98 #9F641B #1B9F22

split-complementary

#1B569F #9F221B #989F1B

monochromatic

#091D36 #123A6B #1B569F #2472D3 #5393E2

Accessibility & contrast

On white

7.30

#1B569F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#1B569F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B569F

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B569F	#FFFFFF	#000000	##FFFFFF
##1B569F	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5DA2

Deuteranopia (green-blind)

#10519E

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b569f;
/* rgb */ color: rgb(27, 86, 159);
/* oklch */ color: oklch(45.7% 0.133 256.1);

Tailwind

colors: {
  custom: {
    50: '#6e85bc',
    500: '#1b569f',
    950: '#000000',
  },
}

SCSS

$custom: #1b569f;
$custom-light: #6e85bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b569f",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 159
  },
  "hsl": {
    "h": 213.182,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.457,
    "c": 0.13274,
    "h": 256.1
  },
  "luminance": 0.09392
}

Semantic roles & 50–950 ramp

primary

#1B569F

secondary

#C59151

accent

#9D3AEE

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1B569F

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

Preview Lab → · Contrast checker → · Palette generator →