#1A577B#1A577B

#1A577B is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.6% C 0.085 H 239.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#1A577B
RGB	rgb(26, 87, 123)
HSL	hsl(202, 65%, 29%)
HSV	hsv(202, 79%, 48%)
CMYK	cmyk(78.9%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(34.93, -5.96, -25.83)
CIE-LCH	lch(34.93, 26.51, 257.00°)
OKLab	oklab(43.61% -0.0432 -0.073)
OKLCH	oklch(43.61% 0.085 239.4)
XYZ	xyz(7.4079, 8.4652, 19.9786)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A577B #7B3E1A

analogous

#1A7B6F #1A577B #1A277B

triadic

#1A577B #7B1A57 #577B1A

tetradic

#1A577B #6F1A7B #7B3E1A #277B1A

square

#1A577B #6F1A7B #7B3E1A #277B1A

split-complementary

#1A577B #7B1A27 #7B6F1A

monochromatic

#051219 #0F3348 #1A577B #257BAE #3A9CD5

Accessibility & contrast

On white

7.80

#1A577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1A577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A577B

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A577B	#FFFFFF	#000000	##FFFFFF
##1A577B	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46577D

Deuteranopia (green-blind)

#394E7A

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1a577b;
/* rgb */ color: rgb(26, 87, 123);
/* oklch */ color: oklch(43.6% 0.085 239.4);

Tailwind

colors: {
  custom: {
    50: '#6686a1',
    500: '#1a577b',
    950: '#000000',
  },
}

SCSS

$custom: #1a577b;
$custom-light: #6686a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a577b",
  "rgb": {
    "r": 26,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 202.268,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.43613,
    "c": 0.08487,
    "h": 239.4
  },
  "luminance": 0.08466
}

Semantic roles & 50–950 ramp

primary

#1A577B

secondary

#AF6A42

accent

#7E40E8

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1A577B

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

Preview Lab → · Contrast checker → · Palette generator →