#1A577C#1A577C

#1A577C is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.7% C 0.086 H 240.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#1A577C
RGB	rgb(26, 87, 124)
HSL	hsl(203, 65%, 29%)
HSV	hsv(203, 79%, 49%)
CMYK	cmyk(79%, 29.8%, 0%, 51.4%)
CIE-LAB	lab(34.98, -5.58, -26.37)
CIE-LCH	lch(34.98, 26.95, 258.06°)
OKLab	oklab(43.67% -0.0429 -0.0746)
OKLCH	oklch(43.67% 0.086 240.1)
XYZ	xyz(7.4709, 8.4904, 20.3099)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A577C #7C3F1A

analogous

#1A7C70 #1A577C #1A267C

triadic

#1A577C #7C1A57 #577C1A

tetradic

#1A577C #701A7C #7C3F1A #267C1A

square

#1A577C #701A7C #7C3F1A #267C1A

split-complementary

#1A577C #7C1A26 #7C701A

monochromatic

#051219 #0F3449 #1A577C #257AAF #3B9BD6

Accessibility & contrast

On white

7.78

#1A577C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1A577C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A577C

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A577C	#FFFFFF	#000000	##FFFFFF
##1A577C	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46577E

Deuteranopia (green-blind)

#384E7B

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1a577c;
/* rgb */ color: rgb(26, 87, 124);
/* oklch */ color: oklch(43.7% 0.086 240.1);

Tailwind

colors: {
  custom: {
    50: '#6686a2',
    500: '#1a577c',
    950: '#000000',
  },
}

SCSS

$custom: #1a577c;
$custom-light: #6686a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a577c",
  "rgb": {
    "r": 26,
    "g": 87,
    "b": 124
  },
  "hsl": {
    "h": 202.653,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.4367,
    "c": 0.08605,
    "h": 240.1
  },
  "luminance": 0.08491
}

Semantic roles & 50–950 ramp

primary

#1A577C

secondary

#B06B42

accent

#7F40E8

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1A577C

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

Preview Lab → · Contrast checker → · Palette generator →