#123E63#123E63

#123E63 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.080 H 248.0°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#123E63
RGB	rgb(18, 62, 99)
HSL	hsl(207, 69%, 23%)
HSV	hsv(207, 82%, 39%)
CMYK	cmyk(81.8%, 37.4%, 0%, 61.2%)
CIE-LAB	lab(25.18, -0.41, -26.05)
CIE-LCH	lch(25.18, 26.06, 269.10°)
OKLab	oklab(35.42% -0.03 -0.0741)
OKLCH	oklch(35.42% 0.08 248)
XYZ	xyz(4.2233, 4.4742, 12.4430)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E63 #633712

analogous

#12635F #123E63 #121663

triadic

#123E63 #63123E #3E6312

tetradic

#123E63 #5F1263 #633712 #166312

square

#123E63 #5F1263 #633712 #166312

split-complementary

#123E63 #631216 #635F12

monochromatic

#05101A #091E2F #123E63 #1B5E97 #257FCB

Accessibility & contrast

On white

11.08

#123E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#123E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E63

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E63	#FFFFFF	#000000	##FFFFFF
##123E63	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4065

Deuteranopia (green-blind)

#213862

Tritanopia (blue-blind)

#00474B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123e63;
/* rgb */ color: rgb(18, 62, 99);
/* oklch */ color: oklch(35.4% 0.080 248.0);

Tailwind

colors: {
  custom: {
    50: '#5e738f',
    500: '#123e63',
    950: '#000000',
  },
}

SCSS

$custom: #123e63;
$custom-light: #5e738f;
$custom-dark: #000000;

JSON

{
  "hex": "#123e63",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 99
  },
  "hsl": {
    "h": 207.407,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.35419,
    "c": 0.07994,
    "h": 248
  },
  "luminance": 0.04475
}

Semantic roles & 50–950 ramp

primary

#123E63

secondary

#9B6436

accent

#8C3CEC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #123E63

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

Preview Lab → · Contrast checker → · Palette generator →