#2A577B#2A577B

#2A577B is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.078 H 245.0°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#2A577B
RGB	rgb(42, 87, 123)
HSL	hsl(207, 49%, 32%)
HSV	hsv(207, 66%, 48%)
CMYK	cmyk(65.9%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(35.47, -3.33, -24.95)
CIE-LCH	lch(35.47, 25.17, 262.40°)
OKLab	oklab(44.19% -0.0327 -0.0703)
OKLCH	oklch(44.19% 0.078 245)
XYZ	xyz(7.9369, 8.7379, 20.0034)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A577B #7B4E2A

analogous

#2A7B77 #2A577B #2A2E7B

triadic

#2A577B #7B2A57 #577B2A

tetradic

#2A577B #772A7B #7B4E2A #2E7B2A

square

#2A577B #772A7B #7B4E2A #2E7B2A

split-complementary

#2A577B #7B2A2E #7B772A

monochromatic

#0B1620 #1A374D #2A577B #3A77A9 #5996C6

Accessibility & contrast

On white

7.64

#2A577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#2A577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A577B

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A577B	#FFFFFF	#000000	##FFFFFF
##2A577B	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587D

Deuteranopia (green-blind)

#3C507A

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #2a577b;
/* rgb */ color: rgb(42, 87, 123);
/* oklch */ color: oklch(44.2% 0.078 245.0);

Tailwind

colors: {
  custom: {
    50: '#6c86a1',
    500: '#2a577b',
    950: '#000000',
  },
}

SCSS

$custom: #2a577b;
$custom-light: #6c86a1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a577b",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 206.667,
    "s": 49.091,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44194,
    "c": 0.07754,
    "h": 245
  },
  "luminance": 0.08739
}

Semantic roles & 50–950 ramp

primary

#2A577B

secondary

#AC7C55

accent

#8C4FD9

background

#F6F8F9

surface

#ECEFF2

border

#C7CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #2A577B

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

Preview Lab → · Contrast checker → · Palette generator →