#123A6F#123A6F

#123A6F is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.3% C 0.102 H 256.9°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#123A6F
RGB	rgb(18, 58, 111)
HSL	hsl(214, 72%, 25%)
HSV	hsv(214, 84%, 44%)
CMYK	cmyk(83.8%, 47.7%, 0%, 56.5%)
CIE-LAB	lab(24.65, 7.42, -34.62)
CIE-LCH	lch(24.65, 35.41, 282.10°)
OKLab	oklab(35.25% -0.023 -0.0994)
OKLCH	oklch(35.25% 0.102 256.9)
XYZ	xyz(4.6307, 4.3019, 15.6221)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A6F #6F4712

analogous

#12686F #123A6F #19126F

triadic

#123A6F #6F123A #3A6F12

tetradic

#123A6F #6F1268 #6F4712 #126F19

square

#123A6F #6F1268 #6F4712 #126F19

split-complementary

#123A6F #6F1912 #686F12

monochromatic

#040E1A #091E3A #123A6F #1B56A4 #2371D8

Accessibility & contrast

On white

11.29

#123A6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#123A6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A6F

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A6F	#FFFFFF	#000000	##FFFFFF
##123A6F	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3F71

Deuteranopia (green-blind)

#08376E

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123a6f;
/* rgb */ color: rgb(18, 58, 111);
/* oklch */ color: oklch(35.3% 0.102 256.9);

Tailwind

colors: {
  custom: {
    50: '#616f99',
    500: '#123a6f',
    950: '#000000',
  },
}

SCSS

$custom: #123a6f;
$custom-light: #616f99;
$custom-dark: #000000;

JSON

{
  "hex": "#123a6f",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 111
  },
  "hsl": {
    "h": 214.194,
    "s": 72.093,
    "l": 25.294
  },
  "oklch": {
    "l": 0.3525,
    "c": 0.102,
    "h": 256.9
  },
  "luminance": 0.04302
}

Semantic roles & 50–950 ramp

primary

#123A6F

secondary

#A67637

accent

#A139EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #123A6F

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

Preview Lab → · Contrast checker → · Palette generator →