#1A578D#1A578D

#1A578D is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.7% C 0.108 H 249.5°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#1A578D
RGB	rgb(26, 87, 141)
HSL	hsl(208, 69%, 33%)
HSV	hsv(208, 82%, 55%)
CMYK	cmyk(81.6%, 38.3%, 0%, 44.7%)
CIE-LAB	lab(35.90, 1.10, -35.33)
CIE-LCH	lch(35.90, 35.35, 271.78°)
OKLab	oklab(44.7% -0.0376 -0.1008)
OKLCH	oklch(44.7% 0.108 249.5)
XYZ	xyz(8.6401, 8.9580, 26.4678)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A578D #8D501A

analogous

#1A8D89 #1A578D #1A1D8D

triadic

#1A578D #8D1A57 #578D1A

tetradic

#1A578D #891A8D #8D501A #1D8D1A

square

#1A578D #891A8D #8D501A #1D8D1A

split-complementary

#1A578D #8D1A1D #8D891A

monochromatic

#071726 #103759 #1A578D #2477C1 #4595DD

Accessibility & contrast

On white

7.52

#1A578D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1A578D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A578D

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A578D	#FFFFFF	#000000	##FFFFFF
##1A578D	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A8F

Deuteranopia (green-blind)

#2C508C

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1a578d;
/* rgb */ color: rgb(26, 87, 141);
/* oklch */ color: oklch(44.7% 0.108 249.5);

Tailwind

colors: {
  custom: {
    50: '#6a86ae',
    500: '#1a578d',
    950: '#000000',
  },
}

SCSS

$custom: #1a578d;
$custom-light: #6a86ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a578d",
  "rgb": {
    "r": 26,
    "g": 87,
    "b": 141
  },
  "hsl": {
    "h": 208.174,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.44696,
    "c": 0.10754,
    "h": 249.5
  },
  "luminance": 0.08959
}

Semantic roles & 50–950 ramp

primary

#1A578D

secondary

#BE7E45

accent

#8F3CEC

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1A578D

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

Preview Lab → · Contrast checker → · Palette generator →