#123B6E#123B6E

#123B6E is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.099 H 255.9°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#123B6E
RGB	rgb(18, 59, 110)
HSL	hsl(213, 72%, 25%)
HSV	hsv(213, 84%, 43%)
CMYK	cmyk(83.6%, 46.4%, 0%, 56.9%)
CIE-LAB	lab(24.90, 6.29, -33.58)
CIE-LCH	lch(24.90, 34.17, 280.61°)
OKLab	oklab(35.42% -0.0241 -0.0963)
OKLCH	oklch(35.42% 0.099 255.9)
XYZ	xyz(4.6268, 4.3818, 15.3507)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B6E #6E4512

analogous

#12696E #123B6E #17126E

triadic

#123B6E #6E123B #3B6E12

tetradic

#123B6E #6E1269 #6E4512 #126E17

square

#123B6E #6E1269 #6E4512 #126E17

split-complementary

#123B6E #6E1712 #696E12

monochromatic

#040E1A #091F39 #123B6E #1B57A3 #2373D7

Accessibility & contrast

On white

11.19

#123B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#123B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B6E

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B6E	#FFFFFF	#000000	##FFFFFF
##123B6E	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214070

Deuteranopia (green-blind)

#0E376D

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123b6e;
/* rgb */ color: rgb(18, 59, 110);
/* oklch */ color: oklch(35.4% 0.099 255.9);

Tailwind

colors: {
  custom: {
    50: '#607098',
    500: '#123b6e',
    950: '#000000',
  },
}

SCSS

$custom: #123b6e;
$custom-light: #607098;
$custom-dark: #000000;

JSON

{
  "hex": "#123b6e",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 110
  },
  "hsl": {
    "h": 213.261,
    "s": 71.875,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35422,
    "c": 0.09925,
    "h": 255.9
  },
  "luminance": 0.04382
}

Semantic roles & 50–950 ramp

primary

#123B6E

secondary

#A57437

accent

#9E39EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123B6E

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

Preview Lab → · Contrast checker → · Palette generator →