#23455C#23455C

#23455C is a dark, muted cyan. Relative luminance 0.054; OKLCH L 37.6% C 0.056 H 240.1°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#23455C
RGB	rgb(35, 69, 92)
HSL	hsl(204, 45%, 25%)
HSV	hsv(204, 62%, 36%)
CMYK	cmyk(62%, 25%, 0%, 63.9%)
CIE-LAB	lab(27.81, -4.62, -17.37)
CIE-LCH	lch(27.81, 17.98, 255.10°)
OKLab	oklab(37.55% -0.0279 -0.0486)
OKLCH	oklch(37.55% 0.056 240.1)
XYZ	xyz(4.7523, 5.3858, 10.9123)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23455C #5C3A23

analogous

#235C57 #23455C #23285C

triadic

#23455C #5C2345 #455C23

tetradic

#23455C #57235C #5C3A23 #285C23

square

#23455C #57235C #5C3A23 #285C23

split-complementary

#23455C #5C2328 #5C5723

monochromatic

#081116 #122430 #23455C #346688 #4588B5

Accessibility & contrast

On white

10.11

#23455C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#23455C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23455C

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23455C	#FFFFFF	#000000	##FFFFFF
##23455C	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B455D

Deuteranopia (green-blind)

#333F5C

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #23455c;
/* rgb */ color: rgb(35, 69, 92);
/* oklch */ color: oklch(37.6% 0.056 240.1);

Tailwind

colors: {
  custom: {
    50: '#63788a',
    500: '#23455c',
    950: '#000000',
  },
}

SCSS

$custom: #23455c;
$custom-light: #63788a;
$custom-dark: #000000;

JSON

{
  "hex": "#23455c",
  "rgb": {
    "r": 35,
    "g": 69,
    "b": 92
  },
  "hsl": {
    "h": 204.211,
    "s": 44.882,
    "l": 24.902
  },
  "oklch": {
    "l": 0.37554,
    "c": 0.05608,
    "h": 240.1
  },
  "luminance": 0.05386
}

Semantic roles & 50–950 ramp

primary

#23455C

secondary

#90674B

accent

#8753D5

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06090B

muted

#7A7B7C

Preview Lab

Preview with #23455C

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

Preview Lab → · Contrast checker → · Palette generator →