#123F64#123F64

#123F64 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.080 H 247.5°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#123F64
RGB	rgb(18, 63, 100)
HSL	hsl(207, 69%, 23%)
HSV	hsv(207, 82%, 39%)
CMYK	cmyk(82%, 37%, 0%, 60.8%)
CIE-LAB	lab(25.57, -0.67, -26.08)
CIE-LCH	lch(25.57, 26.09, 268.53°)
OKLab	oklab(35.75% -0.0307 -0.0742)
OKLCH	oklch(35.75% 0.08 247.5)
XYZ	xyz(4.3263, 4.6032, 12.7146)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F64 #643712

analogous

#126460 #123F64 #121664

triadic

#123F64 #64123F #3F6412

tetradic

#123F64 #601264 #643712 #166412

square

#123F64 #601264 #643712 #166412

split-complementary

#123F64 #641216 #646012

monochromatic

#05101A #091E30 #123F64 #1B6098 #2580CC

Accessibility & contrast

On white

10.93

#123F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#123F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F64

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F64	#FFFFFF	#000000	##FFFFFF
##123F64	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4166

Deuteranopia (green-blind)

#223963

Tritanopia (blue-blind)

#00484C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #123f64;
/* rgb */ color: rgb(18, 63, 100);
/* oklch */ color: oklch(35.7% 0.080 247.5);

Tailwind

colors: {
  custom: {
    50: '#5e7390',
    500: '#123f64',
    950: '#000000',
  },
}

SCSS

$custom: #123f64;
$custom-light: #5e7390;
$custom-dark: #000000;

JSON

{
  "hex": "#123f64",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 100
  },
  "hsl": {
    "h": 207.073,
    "s": 69.492,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35747,
    "c": 0.08026,
    "h": 247.5
  },
  "luminance": 0.04604
}

Semantic roles & 50–950 ramp

primary

#123F64

secondary

#9C6436

accent

#8B3BEC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #123F64

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

Preview Lab → · Contrast checker → · Palette generator →