#233D55#233D55

#233D55 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.053 H 247.7°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#233D55
RGB	rgb(35, 61, 85)
HSL	hsl(209, 42%, 24%)
HSV	hsv(209, 59%, 33%)
CMYK	cmyk(58.8%, 28.2%, 0%, 66.7%)
CIE-LAB	lab(24.80, -1.92, -17.49)
CIE-LCH	lch(24.80, 17.59, 263.74°)
OKLab	oklab(35.07% -0.0201 -0.049)
OKLCH	oklch(35.07% 0.053 247.7)
XYZ	xyz(4.0010, 4.3504, 9.2214)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D55 #553B23

analogous

#235554 #233D55 #232455

triadic

#233D55 #55233D #3D5523

tetradic

#233D55 #542355 #553B23 #245523

square

#233D55 #542355 #553B23 #245523

split-complementary

#233D55 #552324 #555423

monochromatic

#091016 #111E2A #233D55 #355C80 #477BAC

Accessibility & contrast

On white

11.23

#233D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#233D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D55

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D55	#FFFFFF	#000000	##FFFFFF
##233D55	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333E56

Deuteranopia (green-blind)

#2C3955

Tritanopia (blue-blind)

#044345

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233d55;
/* rgb */ color: rgb(35, 61, 85);
/* oklch */ color: oklch(35.1% 0.053 247.7);

Tailwind

colors: {
  custom: {
    50: '#627285',
    500: '#233d55',
    950: '#000000',
  },
}

SCSS

$custom: #233d55;
$custom-light: #627285;
$custom-dark: #000000;

JSON

{
  "hex": "#233d55",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 85
  },
  "hsl": {
    "h": 208.8,
    "s": 41.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.35065,
    "c": 0.05298,
    "h": 247.7
  },
  "luminance": 0.04351
}

Semantic roles & 50–950 ramp

primary

#233D55

secondary

#89694B

accent

#9156D1

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233D55

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

Preview Lab → · Contrast checker → · Palette generator →