#123F75#123F75

#123F75 is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 36.9% C 0.104 H 255.5°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#123F75
RGB	rgb(18, 63, 117)
HSL	hsl(213, 73%, 26%)
HSV	hsv(213, 85%, 46%)
CMYK	cmyk(84.6%, 46.2%, 0%, 54.1%)
CIE-LAB	lab(26.64, 6.46, -35.24)
CIE-LCH	lch(26.64, 35.83, 280.39°)
OKLab	oklab(36.93% -0.0262 -0.101)
OKLCH	oklch(36.93% 0.104 255.5)
XYZ	xyz(5.2367, 4.9673, 17.5090)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F75 #754812

analogous

#127175 #123F75 #171275

triadic

#123F75 #75123F #3F7512

tetradic

#123F75 #751271 #754812 #127517

square

#123F75 #751271 #754812 #127517

split-complementary

#123F75 #751712 #717512

monochromatic

#040E1B #0A2240 #123F75 #1A5CAA #2478DD

Accessibility & contrast

On white

10.53

#123F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#123F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F75

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F75	#FFFFFF	#000000	##FFFFFF
##123F75	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234477

Deuteranopia (green-blind)

#0E3B74

Tritanopia (blue-blind)

#004C54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #123f75;
/* rgb */ color: rgb(18, 63, 117);
/* oklch */ color: oklch(36.9% 0.104 255.5);

Tailwind

colors: {
  custom: {
    50: '#62739d',
    500: '#123f75',
    950: '#000000',
  },
}

SCSS

$custom: #123f75;
$custom-light: #62739d;
$custom-dark: #000000;

JSON

{
  "hex": "#123f75",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 117
  },
  "hsl": {
    "h": 212.727,
    "s": 73.333,
    "l": 26.471
  },
  "oklch": {
    "l": 0.36928,
    "c": 0.10439,
    "h": 255.5
  },
  "luminance": 0.04968
}

Semantic roles & 50–950 ramp

primary

#123F75

secondary

#AC7737

accent

#9C38F0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #123F75

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

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