#123959#123959

#123959 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.071 H 247.0°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#123959
RGB	rgb(18, 57, 89)
HSL	hsl(207, 66%, 21%)
HSV	hsv(207, 80%, 35%)
CMYK	cmyk(79.8%, 36%, 0%, 65.1%)
CIE-LAB	lab(22.92, -1.15, -23.12)
CIE-LCH	lch(22.92, 23.15, 267.14°)
OKLab	oklab(33.45% -0.0279 -0.0656)
OKLCH	oklch(33.45% 0.071 247)
XYZ	xyz(3.5151, 3.7757, 9.9928)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123959 #593212

analogous

#125955 #123959 #121559

triadic

#123959 #591239 #395912

tetradic

#123959 #551259 #593212 #155912

square

#123959 #551259 #593212 #155912

split-complementary

#123959 #591215 #595512

monochromatic

#051019 #081826 #123959 #1C5A8C #277ABF

Accessibility & contrast

On white

11.96

#123959 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123959 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123959

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123959	#FFFFFF	#000000	##FFFFFF
##123959	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3A5A

Deuteranopia (green-blind)

#203458

Tritanopia (blue-blind)

#004145

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123959;
/* rgb */ color: rgb(18, 57, 89);
/* oklch */ color: oklch(33.4% 0.071 247.0);

Tailwind

colors: {
  custom: {
    50: '#5b6f88',
    500: '#123959',
    950: '#000000',
  },
}

SCSS

$custom: #123959;
$custom-light: #5b6f88;
$custom-dark: #000000;

JSON

{
  "hex": "#123959",
  "rgb": {
    "r": 18,
    "g": 57,
    "b": 89
  },
  "hsl": {
    "h": 207.042,
    "s": 66.355,
    "l": 20.98
  },
  "oklch": {
    "l": 0.33447,
    "c": 0.0713,
    "h": 247
  },
  "luminance": 0.03776
}

Semantic roles & 50–950 ramp

primary

#123959

secondary

#925F35

accent

#8B3FE9

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123959

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

Preview Lab → · Contrast checker → · Palette generator →