#123B4D#123B4D

#123B4D is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.055 H 230.7°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#123B4D
RGB	rgb(18, 59, 77)
HSL	hsl(198, 62%, 19%)
HSV	hsv(198, 77%, 30%)
CMYK	cmyk(76.6%, 23.4%, 0%, 69.8%)
CIE-LAB	lab(22.97, -7.33, -15.10)
CIE-LCH	lch(22.97, 16.79, 244.10°)
OKLab	oklab(33.28% -0.0347 -0.0424)
OKLCH	oklch(33.28% 0.055 230.7)
XYZ	xyz(3.1524, 3.7920, 7.5855)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B4D #4D2412

analogous

#124D41 #123B4D #121D4D

triadic

#123B4D #4D123B #3B4D12

tetradic

#123B4D #41124D #4D2412 #1D4D12

square

#123B4D #41124D #4D2412 #1D4D12

split-complementary

#123B4D #4D121D #4D4112

monochromatic

#061319 #06151B #123B4D #1E617F #2987B0

Accessibility & contrast

On white

11.94

#123B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B4D

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B4D	#FFFFFF	#000000	##FFFFFF
##123B4D	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4E

Deuteranopia (green-blind)

#2A344D

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123b4d;
/* rgb */ color: rgb(18, 59, 77);
/* oklch */ color: oklch(33.3% 0.055 230.7);

Tailwind

colors: {
  custom: {
    50: '#59707f',
    500: '#123b4d',
    950: '#000000',
  },
}

SCSS

$custom: #123b4d;
$custom-light: #59707f;
$custom-dark: #000000;

JSON

{
  "hex": "#123b4d",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 77
  },
  "hsl": {
    "h": 198.305,
    "s": 62.105,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33282,
    "c": 0.05476,
    "h": 230.7
  },
  "luminance": 0.03792
}

Semantic roles & 50–950 ramp

primary

#123B4D

secondary

#864E35

accent

#7443E5

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #123B4D

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

Preview Lab → · Contrast checker → · Palette generator →