#233B53#233B53

#233B53 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.052 H 249.5°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#233B53
RGB	rgb(35, 59, 83)
HSL	hsl(210, 41%, 23%)
HSV	hsv(210, 58%, 33%)
CMYK	cmyk(57.8%, 28.9%, 0%, 67.5%)
CIE-LAB	lab(24.03, -1.31, -17.37)
CIE-LCH	lch(24.03, 17.42, 265.70°)
OKLab	oklab(34.43% -0.0181 -0.0487)
OKLCH	oklch(34.43% 0.052 249.5)
XYZ	xyz(3.8179, 4.1095, 8.7740)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B53 #533B23

analogous

#235353 #233B53 #232353

triadic

#233B53 #53233B #3B5323

tetradic

#233B53 #532353 #533B23 #235323

square

#233B53 #532353 #533B23 #235323

split-complementary

#233B53 #532323 #535323

monochromatic

#090F16 #111C28 #233B53 #355A7E #4778A9

Accessibility & contrast

On white

11.53

#233B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#233B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B53

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B53	#FFFFFF	#000000	##FFFFFF
##233B53	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313C54

Deuteranopia (green-blind)

#2B3753

Tritanopia (blue-blind)

#084143

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #233b53;
/* rgb */ color: rgb(35, 59, 83);
/* oklch */ color: oklch(34.4% 0.052 249.5);

Tailwind

colors: {
  custom: {
    50: '#627083',
    500: '#233b53',
    950: '#000000',
  },
}

SCSS

$custom: #233b53;
$custom-light: #627083;
$custom-dark: #000000;

JSON

{
  "hex": "#233b53",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 83
  },
  "hsl": {
    "h": 210,
    "s": 40.678,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34429,
    "c": 0.05194,
    "h": 249.5
  },
  "luminance": 0.0411
}

Semantic roles & 50–950 ramp

primary

#233B53

secondary

#87694B

accent

#9457D1

background

#F5F6F8

surface

#EAECEF

border

#C6C7CA

text

#05070A

muted

#797A7C

Preview Lab

Preview with #233B53

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

Preview Lab → · Contrast checker → · Palette generator →