#121B7F#121B7F

#121B7F is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.163 H 268.5°. Best body text is #FFFFFF at 14.10:1 contrast (WCAG AA passes).

Color values

HEX	#121B7F
RGB	rgb(18, 27, 127)
HSL	hsl(235, 75%, 28%)
HSV	hsv(235, 86%, 50%)
CMYK	cmyk(85.8%, 78.7%, 0%, 50.2%)
CIE-LAB	lab(17.66, 35.38, -56.23)
CIE-LCH	lch(17.66, 66.44, 302.18°)
OKLab	oklab(30.51% -0.0043 -0.163)
OKLCH	oklch(30.51% 0.163 268.5)
XYZ	xyz(4.4708, 2.4442, 20.3107)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B7F #7F7612

analogous

#12517F #121B7F #3F127F

triadic

#121B7F #7F121B #1B7F12

tetradic

#121B7F #7F1251 #7F7612 #127F3F

square

#121B7F #7F1251 #7F7612 #127F3F

split-complementary

#121B7F #7F3F12 #517F12

monochromatic

#04061B #0A1049 #121B7F #1A26B5 #2B3AE1

Accessibility & contrast

On white

14.10

#121B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#121B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B7F

14.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B7F	#FFFFFF	#000000	##FFFFFF
##121B7F	1.00	14.10	1.49	14.10
#FFFFFF	14.10	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00267D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #121b7f;
/* rgb */ color: rgb(18, 27, 127);
/* oklch */ color: oklch(30.5% 0.163 268.5);

Tailwind

colors: {
  custom: {
    50: '#6859a5',
    500: '#121b7f',
    950: '#000000',
  },
}

SCSS

$custom: #121b7f;
$custom-light: #6859a5;
$custom-dark: #000000;

JSON

{
  "hex": "#121b7f",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 127
  },
  "hsl": {
    "h": 235.046,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30507,
    "c": 0.16302,
    "h": 268.5
  },
  "luminance": 0.02445
}

Semantic roles & 50–950 ramp

primary

#121B7F

secondary

#B5AA38

accent

#E236F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #121B7F

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

Preview Lab → · Contrast checker → · Palette generator →