#2B557C#2B557C

#2B557C is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.8% C 0.080 H 248.5°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#2B557C
RGB	rgb(43, 85, 124)
HSL	hsl(209, 49%, 33%)
HSV	hsv(209, 65%, 49%)
CMYK	cmyk(65.3%, 31.5%, 0%, 51.4%)
CIE-LAB	lab(34.93, -1.50, -26.41)
CIE-LCH	lch(34.93, 26.45, 266.74°)
OKLab	oklab(43.8% -0.0293 -0.0745)
OKLCH	oklch(43.8% 0.08 248.5)
XYZ	xyz(7.8815, 8.4651, 20.2834)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B557C #7C522B

analogous

#2B7C7A #2B557C #2B2C7C

triadic

#2B557C #7C2B55 #557C2B

tetradic

#2B557C #7A2B7C #7C522B #2C7C2B

square

#2B557C #7A2B7C #7C522B #2C7C2B

split-complementary

#2B557C #7C2B2C #7C7A2B

monochromatic

#0B1721 #1B364F #2B557C #3B74A9 #5B93C6

Accessibility & contrast

On white

7.80

#2B557C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#2B557C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B557C

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B557C	#FFFFFF	#000000	##FFFFFF
##2B557C	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)

#44577E

Deuteranopia (green-blind)

#394F7B

Tritanopia (blue-blind)

#005E63

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2b557c;
/* rgb */ color: rgb(43, 85, 124);
/* oklch */ color: oklch(43.8% 0.080 248.5);

Tailwind

colors: {
  custom: {
    50: '#6d84a2',
    500: '#2b557c',
    950: '#000000',
  },
}

SCSS

$custom: #2b557c;
$custom-light: #6d84a2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b557c",
  "rgb": {
    "r": 43,
    "g": 85,
    "b": 124
  },
  "hsl": {
    "h": 208.889,
    "s": 48.503,
    "l": 32.745
  },
  "oklch": {
    "l": 0.43795,
    "c": 0.08008,
    "h": 248.5
  },
  "luminance": 0.08466
}

Semantic roles & 50–950 ramp

primary

#2B557C

secondary

#AC8057

accent

#9150D8

background

#F6F8FA

surface

#ECEFF3

border

#C7CACD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #2B557C

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

Preview Lab → · Contrast checker → · Palette generator →