#124D5B#124D5B

#124D5B is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.0% C 0.062 H 217.5°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#124D5B
RGB	rgb(18, 77, 91)
HSL	hsl(192, 67%, 21%)
HSV	hsv(192, 80%, 36%)
CMYK	cmyk(80.2%, 15.4%, 0%, 64.3%)
CIE-LAB	lab(29.89, -13.10, -13.57)
CIE-LCH	lch(29.89, 18.86, 226.00°)
OKLab	oklab(39.03% -0.0494 -0.0379)
OKLCH	oklch(39.03% 0.062 217.5)
XYZ	xyz(4.7909, 6.1911, 10.8380)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#124D5B #5B2012

analogous

#125B45 #124D5B #12295B

triadic

#124D5B #5B124D #4D5B12

tetradic

#124D5B #45125B #5B2012 #295B12

square

#124D5B #45125B #5B2012 #295B12

split-complementary

#124D5B #5B1229 #5B4512

monochromatic

#05161A #082228 #124D5B #1C788E #26A3C1

Accessibility & contrast

On white

9.38

#124D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#124D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #124D5B

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##124D5B	#FFFFFF	#000000	##FFFFFF
##124D5B	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444B5C

Deuteranopia (green-blind)

#3A435B

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #124d5b;
/* rgb */ color: rgb(18, 77, 91);
/* oklch */ color: oklch(39.0% 0.062 217.5);

Tailwind

colors: {
  custom: {
    50: '#5d7f89',
    500: '#124d5b',
    950: '#000000',
  },
}

SCSS

$custom: #124d5b;
$custom-light: #5d7f89;
$custom-dark: #000000;

JSON

{
  "hex": "#124d5b",
  "rgb": {
    "r": 18,
    "g": 77,
    "b": 91
  },
  "hsl": {
    "h": 191.507,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.39035,
    "c": 0.06223,
    "h": 217.5
  },
  "luminance": 0.06192
}

Semantic roles & 50–950 ramp

primary

#124D5B

secondary

#934735

accent

#5F3EEA

background

#F5F7F8

surface

#E9EEF0

border

#C5C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #124D5B

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

Preview Lab → · Contrast checker → · Palette generator →