#1A578B#1A578B

#1A578B is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.6% C 0.105 H 248.7°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#1A578B
RGB	rgb(26, 87, 139)
HSL	hsl(208, 68%, 32%)
HSV	hsv(208, 81%, 55%)
CMYK	cmyk(81.3%, 37.4%, 0%, 45.5%)
CIE-LAB	lab(35.79, 0.30, -34.29)
CIE-LCH	lch(35.79, 34.30, 270.50°)
OKLab	oklab(44.57% -0.0382 -0.0977)
OKLCH	oklch(44.57% 0.105 248.7)
XYZ	xyz(8.4926, 8.8991, 25.6912)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A578B #8B4E1A

analogous

#1A8B87 #1A578B #1A1E8B

triadic

#1A578B #8B1A57 #578B1A

tetradic

#1A578B #871A8B #8B4E1A #1E8B1A

square

#1A578B #871A8B #8B4E1A #1E8B1A

split-complementary

#1A578B #8B1A1E #8B871A

monochromatic

#071624 #103757 #1A578B #2477BF #4396DC

Accessibility & contrast

On white

7.55

#1A578B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1A578B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A578B

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A578B	#FFFFFF	#000000	##FFFFFF
##1A578B	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5A8D

Deuteranopia (green-blind)

#2E508A

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1a578b;
/* rgb */ color: rgb(26, 87, 139);
/* oklch */ color: oklch(44.6% 0.105 248.7);

Tailwind

colors: {
  custom: {
    50: '#6986ad',
    500: '#1a578b',
    950: '#000000',
  },
}

SCSS

$custom: #1a578b;
$custom-light: #6986ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1a578b",
  "rgb": {
    "r": 26,
    "g": 87,
    "b": 139
  },
  "hsl": {
    "h": 207.611,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44569,
    "c": 0.10491,
    "h": 248.7
  },
  "luminance": 0.089
}

Semantic roles & 50–950 ramp

primary

#1A578B

secondary

#BD7C44

accent

#8D3CEB

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1A578B

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

Preview Lab → · Contrast checker → · Palette generator →