#123F63#123F63

#123F63 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.079 H 246.9°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#123F63
RGB	rgb(18, 63, 99)
HSL	hsl(207, 69%, 23%)
HSV	hsv(207, 82%, 39%)
CMYK	cmyk(81.8%, 36.4%, 0%, 61.2%)
CIE-LAB	lab(25.52, -1.08, -25.52)
CIE-LCH	lch(25.52, 25.55, 267.57°)
OKLab	oklab(35.68% -0.031 -0.0725)
OKLCH	oklch(35.68% 0.079 246.9)
XYZ	xyz(4.2782, 4.5840, 12.4613)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F63 #633612

analogous

#12635E #123F63 #121663

triadic

#123F63 #63123F #3F6312

tetradic

#123F63 #5E1263 #633612 #166312

square

#123F63 #5E1263 #633612 #166312

split-complementary

#123F63 #631216 #635E12

monochromatic

#05101A #091E2F #123F63 #1B6097 #2581CB

Accessibility & contrast

On white

10.96

#123F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#123F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F63

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F63	#FFFFFF	#000000	##FFFFFF
##123F63	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4165

Deuteranopia (green-blind)

#233962

Tritanopia (blue-blind)

#00484C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123f63;
/* rgb */ color: rgb(18, 63, 99);
/* oklch */ color: oklch(35.7% 0.079 246.9);

Tailwind

colors: {
  custom: {
    50: '#5e738f',
    500: '#123f63',
    950: '#000000',
  },
}

SCSS

$custom: #123f63;
$custom-light: #5e738f;
$custom-dark: #000000;

JSON

{
  "hex": "#123f63",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 99
  },
  "hsl": {
    "h": 206.667,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.35682,
    "c": 0.0789,
    "h": 246.9
  },
  "luminance": 0.04584
}

Semantic roles & 50–950 ramp

primary

#123F63

secondary

#9B6336

accent

#8A3CEC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #123F63

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

Preview Lab → · Contrast checker → · Palette generator →