#233F53#233F53

#233F53 is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.049 H 241.1°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#233F53
RGB	rgb(35, 63, 83)
HSL	hsl(205, 41%, 23%)
HSV	hsv(205, 58%, 33%)
CMYK	cmyk(57.8%, 24.1%, 0%, 67.5%)
CIE-LAB	lab(25.37, -3.95, -15.29)
CIE-LCH	lch(25.37, 15.79, 255.50°)
OKLab	oklab(35.49% -0.0236 -0.0427)
OKLCH	oklch(35.49% 0.049 241.1)
XYZ	xyz(4.0314, 4.5365, 8.8451)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F53 #533723

analogous

#23534F #233F53 #232753

triadic

#233F53 #53233F #3F5323

tetradic

#233F53 #4F2353 #533723 #275323

square

#233F53 #4F2353 #533723 #275323

split-complementary

#233F53 #532327 #534F23

monochromatic

#091016 #111E28 #233F53 #35607E #4780A9

Accessibility & contrast

On white

11.01

#233F53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#233F53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F53

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F53	#FFFFFF	#000000	##FFFFFF
##233F53	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363F54

Deuteranopia (green-blind)

#303A53

Tritanopia (blue-blind)

#064446

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233f53;
/* rgb */ color: rgb(35, 63, 83);
/* oklch */ color: oklch(35.5% 0.049 241.1);

Tailwind

colors: {
  custom: {
    50: '#627483',
    500: '#233f53',
    950: '#000000',
  },
}

SCSS

$custom: #233f53;
$custom-light: #627483;
$custom-dark: #000000;

JSON

{
  "hex": "#233f53",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 83
  },
  "hsl": {
    "h": 205,
    "s": 40.678,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35486,
    "c": 0.04876,
    "h": 241.1
  },
  "luminance": 0.04537
}

Semantic roles & 50–950 ramp

primary

#233F53

secondary

#87644B

accent

#8A57D1

background

#F5F7F8

surface

#EAEDEF

border

#C6C8CA

text

#05080A

muted

#797B7C

Preview Lab

Preview with #233F53

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

Preview Lab → · Contrast checker → · Palette generator →