#123257#123257

#123257 is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.5% C 0.076 H 254.1°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#123257
RGB	rgb(18, 50, 87)
HSL	hsl(212, 66%, 21%)
HSV	hsv(212, 79%, 34%)
CMYK	cmyk(79.3%, 42.5%, 0%, 65.9%)
CIE-LAB	lab(20.43, 2.89, -25.74)
CIE-LCH	lch(20.43, 25.90, 276.41°)
OKLab	oklab(31.46% -0.0209 -0.0734)
OKLCH	oklch(31.46% 0.076 254.1)
XYZ	xyz(3.1097, 3.0976, 9.4490)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123257 #573712

analogous

#125457 #123257 #151257

triadic

#123257 #571232 #325712

tetradic

#123257 #571254 #573712 #125715

square

#123257 #571254 #573712 #125715

split-complementary

#123257 #571512 #545712

monochromatic

#050F19 #081524 #123257 #1C4F8A #276CBC

Accessibility & contrast

On white

12.97

#123257 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#123257 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123257

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123257	#FFFFFF	#000000	##FFFFFF
##123257	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213558

Deuteranopia (green-blind)

#162E56

Tritanopia (blue-blind)

#003B40

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #123257;
/* rgb */ color: rgb(18, 50, 87);
/* oklch */ color: oklch(31.5% 0.076 254.1);

Tailwind

colors: {
  custom: {
    50: '#5b6986',
    500: '#123257',
    950: '#000000',
  },
}

SCSS

$custom: #123257;
$custom-light: #5b6986;
$custom-dark: #000000;

JSON

{
  "hex": "#123257",
  "rgb": {
    "r": 18,
    "g": 50,
    "b": 87
  },
  "hsl": {
    "h": 212.174,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.3146,
    "c": 0.07633,
    "h": 254.1
  },
  "luminance": 0.03098
}

Semantic roles & 50–950 ramp

primary

#123257

secondary

#906635

accent

#9A3FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123257

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

Preview Lab → · Contrast checker → · Palette generator →