#123C63#123C63

#123C63 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.082 H 250.1°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#123C63
RGB	rgb(18, 60, 99)
HSL	hsl(209, 69%, 23%)
HSV	hsv(209, 82%, 39%)
CMYK	cmyk(81.8%, 39.4%, 0%, 61.2%)
CIE-LAB	lab(24.52, 0.96, -27.11)
CIE-LCH	lch(24.52, 27.13, 272.02°)
OKLab	oklab(34.9% -0.0279 -0.0772)
OKLCH	oklch(34.9% 0.082 250.1)
XYZ	xyz(4.1166, 4.2607, 12.4074)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C63 #633912

analogous

#126361 #123C63 #121363

triadic

#123C63 #63123C #3C6312

tetradic

#123C63 #611263 #633912 #136312

square

#123C63 #611263 #633912 #136312

split-complementary

#123C63 #631213 #636112

monochromatic

#05101A #091D2F #123C63 #1B5B97 #257BCB

Accessibility & contrast

On white

11.34

#123C63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#123C63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C63

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C63	#FFFFFF	#000000	##FFFFFF
##123C63	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3E65

Deuteranopia (green-blind)

#1E3762

Tritanopia (blue-blind)

#00454A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123c63;
/* rgb */ color: rgb(18, 60, 99);
/* oklch */ color: oklch(34.9% 0.082 250.1);

Tailwind

colors: {
  custom: {
    50: '#5e718f',
    500: '#123c63',
    950: '#000000',
  },
}

SCSS

$custom: #123c63;
$custom-light: #5e718f;
$custom-dark: #000000;

JSON

{
  "hex": "#123c63",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 99
  },
  "hsl": {
    "h": 208.889,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34897,
    "c": 0.08213,
    "h": 250.1
  },
  "luminance": 0.04261
}

Semantic roles & 50–950 ramp

primary

#123C63

secondary

#9B6736

accent

#913CEC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #123C63

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

Preview Lab → · Contrast checker → · Palette generator →