#2B577B#2B577B

#2B577B is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.077 H 245.5°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#2B577B
RGB	rgb(43, 87, 123)
HSL	hsl(207, 48%, 33%)
HSV	hsv(207, 65%, 48%)
CMYK	cmyk(65%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(35.52, -3.13, -24.88)
CIE-LCH	lch(35.52, 25.07, 262.83°)
OKLab	oklab(44.24% -0.032 -0.0701)
OKLCH	oklch(44.24% 0.077 245.5)
XYZ	xyz(7.9783, 8.7593, 20.0053)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B577B #7B4F2B

analogous

#2B7B77 #2B577B #2B2F7B

triadic

#2B577B #7B2B57 #577B2B

tetradic

#2B577B #772B7B #7B4F2B #2F7B2B

square

#2B577B #772B7B #7B4F2B #2F7B2B

split-complementary

#2B577B #7B2B2F #7B772B

monochromatic

#0B1720 #1B374E #2B577B #3B77A8 #5B96C6

Accessibility & contrast

On white

7.63

#2B577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#2B577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B577B

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B577B	#FFFFFF	#000000	##FFFFFF
##2B577B	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587D

Deuteranopia (green-blind)

#3C507A

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2b577b;
/* rgb */ color: rgb(43, 87, 123);
/* oklch */ color: oklch(44.2% 0.077 245.5);

Tailwind

colors: {
  custom: {
    50: '#6d86a1',
    500: '#2b577b',
    950: '#000000',
  },
}

SCSS

$custom: #2b577b;
$custom-light: #6d86a1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b577b",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 207,
    "s": 48.193,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44239,
    "c": 0.07701,
    "h": 245.5
  },
  "luminance": 0.0876
}

Semantic roles & 50–950 ramp

primary

#2B577B

secondary

#AB7D56

accent

#8D50D8

background

#F6F8F9

surface

#ECEFF2

border

#C7CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #2B577B

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

Preview Lab → · Contrast checker → · Palette generator →