#124C5B#124C5B

#124C5B is a dark, moderate cyan. Relative luminance 0.061; OKLCH L 38.8% C 0.062 H 219.2°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#124C5B
RGB	rgb(18, 76, 91)
HSL	hsl(192, 67%, 21%)
HSV	hsv(192, 80%, 36%)
CMYK	cmyk(80.2%, 16.5%, 0%, 64.3%)
CIE-LAB	lab(29.54, -12.51, -14.10)
CIE-LCH	lch(29.54, 18.85, 228.42°)
OKLab	oklab(38.76% -0.0482 -0.0394)
OKLCH	oklch(38.76% 0.062 219.2)
XYZ	xyz(4.7214, 6.0522, 10.8149)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#124C5B #5B2112

analogous

#125B46 #124C5B #12285B

triadic

#124C5B #5B124C #4C5B12

tetradic

#124C5B #46125B #5B2112 #285B12

square

#124C5B #46125B #5B2112 #285B12

split-complementary

#124C5B #5B1228 #5B4612

monochromatic

#05151A #082128 #124C5B #1C778E #26A1C1

Accessibility & contrast

On white

9.50

#124C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#124C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #124C5B

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##124C5B	#FFFFFF	#000000	##FFFFFF
##124C5B	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434A5C

Deuteranopia (green-blind)

#39425B

Tritanopia (blue-blind)

#005151

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #124c5b;
/* rgb */ color: rgb(18, 76, 91);
/* oklch */ color: oklch(38.8% 0.062 219.2);

Tailwind

colors: {
  custom: {
    50: '#5d7e89',
    500: '#124c5b',
    950: '#000000',
  },
}

SCSS

$custom: #124c5b;
$custom-light: #5d7e89;
$custom-dark: #000000;

JSON

{
  "hex": "#124c5b",
  "rgb": {
    "r": 18,
    "g": 76,
    "b": 91
  },
  "hsl": {
    "h": 192.329,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.38757,
    "c": 0.06228,
    "h": 219.2
  },
  "luminance": 0.06053
}

Semantic roles & 50–950 ramp

primary

#124C5B

secondary

#934935

accent

#613EEA

background

#F5F7F8

surface

#E9EEF0

border

#C5C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #124C5B

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

Preview Lab → · Contrast checker → · Palette generator →