#233E51#233E51

#233E51 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.047 H 240.6°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#233E51
RGB	rgb(35, 62, 81)
HSL	hsl(205, 40%, 23%)
HSV	hsv(205, 57%, 32%)
CMYK	cmyk(56.8%, 23.5%, 0%, 68.2%)
CIE-LAB	lab(24.94, -4.01, -14.64)
CIE-LCH	lch(24.94, 15.18, 254.70°)
OKLab	oklab(35.12% -0.023 -0.0408)
OKLCH	oklch(35.12% 0.047 240.6)
XYZ	xyz(3.9004, 4.3963, 8.4260)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E51 #513623

analogous

#23514D #233E51 #232751

triadic

#233E51 #51233E #3E5123

tetradic

#233E51 #4D2351 #513623 #275123

square

#233E51 #4D2351 #513623 #275123

split-complementary

#233E51 #512327 #514D23

monochromatic

#091015 #111D26 #233E51 #355F7C #487FA6

Accessibility & contrast

On white

11.17

#233E51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#233E51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E51

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E51	#FFFFFF	#000000	##FFFFFF
##233E51	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363E52

Deuteranopia (green-blind)

#2F3951

Tritanopia (blue-blind)

#094344

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233e51;
/* rgb */ color: rgb(35, 62, 81);
/* oklch */ color: oklch(35.1% 0.047 240.6);

Tailwind

colors: {
  custom: {
    50: '#627382',
    500: '#233e51',
    950: '#000000',
  },
}

SCSS

$custom: #233e51;
$custom-light: #627382;
$custom-dark: #000000;

JSON

{
  "hex": "#233e51",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 81
  },
  "hsl": {
    "h": 204.783,
    "s": 39.655,
    "l": 22.745
  },
  "oklch": {
    "l": 0.35115,
    "c": 0.04687,
    "h": 240.6
  },
  "luminance": 0.04397
}

Semantic roles & 50–950 ramp

primary

#233E51

secondary

#85634B

accent

#8A58D0

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05080A

muted

#797B7C

Preview Lab

Preview with #233E51

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

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