#123C7C#123C7C

#123C7C is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.118 H 259.1°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#123C7C
RGB	rgb(18, 60, 124)
HSL	hsl(216, 75%, 28%)
HSV	hsv(216, 85%, 49%)
CMYK	cmyk(85.5%, 51.6%, 0%, 51.4%)
CIE-LAB	lab(26.20, 11.52, -40.37)
CIE-LCH	lch(26.20, 41.98, 285.93°)
OKLab	oklab(36.75% -0.0224 -0.1162)
OKLCH	oklch(36.75% 0.118 259.1)
XYZ	xyz(5.5021, 4.8149, 19.7043)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C7C #7C5212

analogous

#12717C #123C7C #1D127C

triadic

#123C7C #7C123C #3C7C12

tetradic

#123C7C #7C1271 #7C5212 #127C1D

square

#123C7C #7C1271 #7C5212 #127C1D

split-complementary

#123C7C #7C1D12 #717C12

monochromatic

#040D1B #0A2247 #123C7C #1A56B1 #2971E0

Accessibility & contrast

On white

10.70

#123C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#123C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C7C

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C7C	#FFFFFF	#000000	##FFFFFF
##123C7C	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14437E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #123c7c;
/* rgb */ color: rgb(18, 60, 124);
/* oklch */ color: oklch(36.7% 0.118 259.1);

Tailwind

colors: {
  custom: {
    50: '#6471a2',
    500: '#123c7c',
    950: '#000000',
  },
}

SCSS

$custom: #123c7c;
$custom-light: #6471a2;
$custom-dark: #000000;

JSON

{
  "hex": "#123c7c",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 124
  },
  "hsl": {
    "h": 216.226,
    "s": 74.648,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36746,
    "c": 0.11834,
    "h": 259.1
  },
  "luminance": 0.04816
}

Semantic roles & 50–950 ramp

primary

#123C7C

secondary

#B28238

accent

#A737F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #123C7C

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

Preview Lab → · Contrast checker → · Palette generator →