#23577B#23577B

#23577B is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.9% C 0.081 H 242.2°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#23577B
RGB	rgb(35, 87, 123)
HSL	hsl(205, 56%, 31%)
HSV	hsv(205, 72%, 48%)
CMYK	cmyk(71.5%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(35.21, -4.61, -25.38)
CIE-LCH	lch(35.21, 25.80, 259.71°)
OKLab	oklab(43.91% -0.0378 -0.0716)
OKLCH	oklch(43.91% 0.081 242.2)
XYZ	xyz(7.6751, 8.6029, 19.9911)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23577B #7B4723

analogous

#237B73 #23577B #232B7B

triadic

#23577B #7B2357 #577B23

tetradic

#23577B #73237B #7B4723 #2B7B23

square

#23577B #73237B #7B4723 #2B7B23

split-complementary

#23577B #7B232B #7B7323

monochromatic

#08141C #15354B #23577B #3179AB #4C98CC

Accessibility & contrast

On white

7.72

#23577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#23577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23577B

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23577B	#FFFFFF	#000000	##FFFFFF
##23577B	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587D

Deuteranopia (green-blind)

#3B4F7A

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #23577b;
/* rgb */ color: rgb(35, 87, 123);
/* oklch */ color: oklch(43.9% 0.081 242.2);

Tailwind

colors: {
  custom: {
    50: '#6986a1',
    500: '#23577b',
    950: '#000000',
  },
}

SCSS

$custom: #23577b;
$custom-light: #6986a1;
$custom-dark: #000000;

JSON

{
  "hex": "#23577b",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 204.545,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.43909,
    "c": 0.08101,
    "h": 242.2
  },
  "luminance": 0.08604
}

Semantic roles & 50–950 ramp

primary

#23577B

secondary

#AE744C

accent

#8649DF

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #23577B

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

Preview Lab → · Contrast checker → · Palette generator →