#1A577E#1A577E

#1A577E is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.8% C 0.088 H 241.5°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#1A577E
RGB	rgb(26, 87, 126)
HSL	hsl(203, 66%, 30%)
HSV	hsv(203, 79%, 49%)
CMYK	cmyk(79.4%, 31%, 0%, 50.6%)
CIE-LAB	lab(35.09, -4.80, -27.44)
CIE-LCH	lch(35.09, 27.86, 260.07°)
OKLab	oklab(43.78% -0.0422 -0.0777)
OKLCH	oklch(43.78% 0.088 241.5)
XYZ	xyz(7.5986, 8.5415, 20.9828)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A577E #7E411A

analogous

#1A7E73 #1A577E #1A257E

triadic

#1A577E #7E1A57 #577E1A

tetradic

#1A577E #731A7E #7E411A #257E1A

square

#1A577E #731A7E #7E411A #257E1A

split-complementary

#1A577E #7E1A25 #7E731A

monochromatic

#051219 #10344B #1A577E #247AB1 #3C9AD7

Accessibility & contrast

On white

7.75

#1A577E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1A577E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A577E

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A577E	#FFFFFF	#000000	##FFFFFF
##1A577E	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455880

Deuteranopia (green-blind)

#374E7D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1a577e;
/* rgb */ color: rgb(26, 87, 126);
/* oklch */ color: oklch(43.8% 0.088 241.5);

Tailwind

colors: {
  custom: {
    50: '#6786a3',
    500: '#1a577e',
    950: '#000000',
  },
}

SCSS

$custom: #1a577e;
$custom-light: #6786a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a577e",
  "rgb": {
    "r": 26,
    "g": 87,
    "b": 126
  },
  "hsl": {
    "h": 203.4,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.43784,
    "c": 0.08842,
    "h": 241.5
  },
  "luminance": 0.08542
}

Semantic roles & 50–950 ramp

primary

#1A577E

secondary

#B26E42

accent

#813FE9

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1A577E

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

Preview Lab → · Contrast checker → · Palette generator →