#121B50#121B50

#121B50 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.097 H 270.4°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#121B50
RGB	rgb(18, 27, 80)
HSL	hsl(231, 63%, 19%)
HSV	hsv(231, 78%, 31%)
CMYK	cmyk(77.5%, 66.3%, 0%, 68.6%)
CIE-LAB	lab(12.55, 16.98, -33.71)
CIE-LCH	lch(12.55, 37.75, 296.73°)
OKLab	oklab(25.28% 0.0007 -0.0973)
OKLCH	oklch(25.28% 0.097 270.4)
XYZ	xyz(2.0889, 1.4914, 7.7657)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B50 #504712

analogous

#123A50 #121B50 #281250

triadic

#121B50 #50121B #1B5012

tetradic

#121B50 #50123A #504712 #125028

square

#121B50 #50123A #504712 #125028

split-complementary

#121B50 #502812 #3A5012

monochromatic

#060819 #070A1E #121B50 #1D2C82 #283DB4

Accessibility & contrast

On white

16.17

#121B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B50

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B50	#FFFFFF	#000000	##FFFFFF
##121B50	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002452

Deuteranopia (green-blind)

#001E4F

Tritanopia (blue-blind)

#002832

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121b50;
/* rgb */ color: rgb(18, 27, 80);
/* oklch */ color: oklch(25.3% 0.097 270.4);

Tailwind

colors: {
  custom: {
    50: '#5a5782',
    500: '#121b50',
    950: '#000000',
  },
}

SCSS

$custom: #121b50;
$custom-light: #5a5782;
$custom-dark: #000000;

JSON

{
  "hex": "#121b50",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 80
  },
  "hsl": {
    "h": 231.29,
    "s": 63.265,
    "l": 19.216
  },
  "oklch": {
    "l": 0.25278,
    "c": 0.09727,
    "h": 270.4
  },
  "luminance": 0.01492
}

Semantic roles & 50–950 ramp

primary

#121B50

secondary

#897D35

accent

#CE41E6

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #121B50

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

Preview Lab → · Contrast checker → · Palette generator →