#123E7E#123E7E

#123E7E is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.119 H 258.5°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#123E7E
RGB	rgb(18, 62, 126)
HSL	hsl(216, 75%, 28%)
HSV	hsv(216, 86%, 49%)
CMYK	cmyk(85.7%, 50.8%, 0%, 50.6%)
CIE-LAB	lab(26.96, 10.96, -40.40)
CIE-LCH	lch(26.96, 41.86, 285.17°)
OKLab	oklab(37.38% -0.0236 -0.1162)
OKLCH	oklch(37.38% 0.119 258.5)
XYZ	xyz(5.7366, 5.0795, 20.4127)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E7E #7E5212

analogous

#12747E #123E7E #1C127E

triadic

#123E7E #7E123E #3E7E12

tetradic

#123E7E #7E1274 #7E5212 #127E1C

square

#123E7E #7E1274 #7E5212 #127E1C

split-complementary

#123E7E #7E1C12 #747E12

monochromatic

#040D1B #0A2448 #123E7E #1A58B4 #2A74E1

Accessibility & contrast

On white

10.42

#123E7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#123E7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E7E

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E7E	#FFFFFF	#000000	##FFFFFF
##123E7E	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184580

Deuteranopia (green-blind)

#003B7D

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #123e7e;
/* rgb */ color: rgb(18, 62, 126);
/* oklch */ color: oklch(37.4% 0.119 258.5);

Tailwind

colors: {
  custom: {
    50: '#6472a4',
    500: '#123e7e',
    950: '#000000',
  },
}

SCSS

$custom: #123e7e;
$custom-light: #6472a4;
$custom-dark: #000000;

JSON

{
  "hex": "#123e7e",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 126
  },
  "hsl": {
    "h": 215.556,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37376,
    "c": 0.11863,
    "h": 258.5
  },
  "luminance": 0.0508
}

Semantic roles & 50–950 ramp

primary

#123E7E

secondary

#B48138

accent

#A536F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #123E7E

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

Preview Lab → · Contrast checker → · Palette generator →