#123858#123858

#123858 is a dark, moderate cyan. Relative luminance 0.037; OKLCH L 33.1% C 0.071 H 247.5°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#123858
RGB	rgb(18, 56, 88)
HSL	hsl(207, 66%, 21%)
HSV	hsv(207, 80%, 35%)
CMYK	cmyk(79.5%, 36.4%, 0%, 65.5%)
CIE-LAB	lab(22.52, -0.89, -23.09)
CIE-LCH	lch(22.52, 23.10, 267.80°)
OKLab	oklab(33.12% -0.0271 -0.0655)
OKLCH	oklch(33.12% 0.071 247.5)
XYZ	xyz(3.4244, 3.6611, 9.7568)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123858 #583212

analogous

#125855 #123858 #121558

triadic

#123858 #581238 #385812

tetradic

#123858 #551258 #583212 #155812

square

#123858 #551258 #583212 #155812

split-complementary

#123858 #581215 #585512

monochromatic

#051019 #081825 #123858 #1C588B #2779BE

Accessibility & contrast

On white

12.12

#123858 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#123858 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123858

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123858	#FFFFFF	#000000	##FFFFFF
##123858	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293959

Deuteranopia (green-blind)

#1F3357

Tritanopia (blue-blind)

#004044

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #123858;
/* rgb */ color: rgb(18, 56, 88);
/* oklch */ color: oklch(33.1% 0.071 247.5);

Tailwind

colors: {
  custom: {
    50: '#5b6e87',
    500: '#123858',
    950: '#000000',
  },
}

SCSS

$custom: #123858;
$custom-light: #5b6e87;
$custom-dark: #000000;

JSON

{
  "hex": "#123858",
  "rgb": {
    "r": 18,
    "g": 56,
    "b": 88
  },
  "hsl": {
    "h": 207.429,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.33115,
    "c": 0.07094,
    "h": 247.5
  },
  "luminance": 0.03662
}

Semantic roles & 50–950 ramp

primary

#123858

secondary

#915F35

accent

#8D3FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123858

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

Preview Lab → · Contrast checker → · Palette generator →