#123E7D#123E7D

#123E7D is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.117 H 258.3°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#123E7D
RGB	rgb(18, 62, 125)
HSL	hsl(215, 75%, 28%)
HSV	hsv(215, 86%, 49%)
CMYK	cmyk(85.6%, 50.4%, 0%, 51%)
CIE-LAB	lab(26.89, 10.53, -39.89)
CIE-LCH	lch(26.89, 41.25, 284.80°)
OKLab	oklab(37.3% -0.0238 -0.1147)
OKLCH	oklch(37.3% 0.117 258.3)
XYZ	xyz(5.6724, 5.0538, 20.0746)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E7D #7D5112

analogous

#12737D #123E7D #1B127D

triadic

#123E7D #7D123E #3E7D12

tetradic

#123E7D #7D1273 #7D5112 #127D1B

square

#123E7D #7D1273 #7D5112 #127D1B

split-complementary

#123E7D #7D1B12 #737D12

monochromatic

#040D1B #0A2348 #123E7D #1A59B2 #2974E0

Accessibility & contrast

On white

10.44

#123E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#123E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E7D

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E7D	#FFFFFF	#000000	##FFFFFF
##123E7D	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19457F

Deuteranopia (green-blind)

#003B7C

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #123e7d;
/* rgb */ color: rgb(18, 62, 125);
/* oklch */ color: oklch(37.3% 0.117 258.3);

Tailwind

colors: {
  custom: {
    50: '#6472a3',
    500: '#123e7d',
    950: '#000000',
  },
}

SCSS

$custom: #123e7d;
$custom-light: #6472a3;
$custom-dark: #000000;

JSON

{
  "hex": "#123e7d",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 125
  },
  "hsl": {
    "h": 215.327,
    "s": 74.825,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37297,
    "c": 0.11719,
    "h": 258.3
  },
  "luminance": 0.05055
}

Semantic roles & 50–950 ramp

primary

#123E7D

secondary

#B38038

accent

#A536F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #123E7D

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

Preview Lab → · Contrast checker → · Palette generator →