#123B4E#123B4E

#123B4E is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.056 H 232.1°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#123B4E
RGB	rgb(18, 59, 78)
HSL	hsl(199, 63%, 19%)
HSV	hsv(199, 77%, 31%)
CMYK	cmyk(76.9%, 24.4%, 0%, 69.4%)
CIE-LAB	lab(23.02, -6.94, -15.69)
CIE-LCH	lch(23.02, 17.16, 246.14°)
OKLab	oklab(33.34% -0.0343 -0.044)
OKLCH	oklch(33.34% 0.056 232.1)
XYZ	xyz(3.1880, 3.8062, 7.7729)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B4E #4E2512

analogous

#124E43 #123B4E #121D4E

triadic

#123B4E #4E123B #3B4E12

tetradic

#123B4E #43124E #4E2512 #1D4E12

square

#123B4E #43124E #4E2512 #1D4E12

split-complementary

#123B4E #4E121D #4E4312

monochromatic

#061319 #07151C #123B4E #1D6180 #2986B1

Accessibility & contrast

On white

11.92

#123B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B4E

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B4E	#FFFFFF	#000000	##FFFFFF
##123B4E	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4F

Deuteranopia (green-blind)

#29344E

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123b4e;
/* rgb */ color: rgb(18, 59, 78);
/* oklch */ color: oklch(33.3% 0.056 232.1);

Tailwind

colors: {
  custom: {
    50: '#59707f',
    500: '#123b4e',
    950: '#000000',
  },
}

SCSS

$custom: #123b4e;
$custom-light: #59707f;
$custom-dark: #000000;

JSON

{
  "hex": "#123b4e",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 78
  },
  "hsl": {
    "h": 199,
    "s": 62.5,
    "l": 18.824
  },
  "oklch": {
    "l": 0.33337,
    "c": 0.05582,
    "h": 232.1
  },
  "luminance": 0.03807
}

Semantic roles & 50–950 ramp

primary

#123B4E

secondary

#874F35

accent

#7642E6

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #123B4E

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

Preview Lab → · Contrast checker → · Palette generator →