#121B45#121B45

#121B45 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.2% C 0.080 H 270.3°. Best body text is #FFFFFF at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#121B45
RGB	rgb(18, 27, 69)
HSL	hsl(229, 59%, 17%)
HSV	hsv(229, 74%, 27%)
CMYK	cmyk(73.9%, 60.9%, 0%, 72.9%)
CIE-LAB	lab(11.57, 12.33, -27.71)
CIE-LCH	lch(11.57, 30.33, 293.98°)
OKLab	oklab(24.23% 0.0004 -0.0796)
OKLCH	oklch(24.23% 0.08 270.3)
XYZ	xyz(1.7152, 1.3420, 5.7977)
Luminance	0.0134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B45 #453C12

analogous

#123545 #121B45 #231245

triadic

#121B45 #45121B #1B4512

tetradic

#121B45 #451235 #453C12 #124523

square

#121B45 #451235 #453C12 #124523

split-complementary

#121B45 #452312 #354512

monochromatic

#060918 #060918 #121B45 #1F2E76 #2B41A6

Accessibility & contrast

On white

16.56

#121B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#121B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B45

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B45	#FFFFFF	#000000	##FFFFFF
##121B45	1.00	16.56	1.27	16.56
#FFFFFF	16.56	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#012146

Deuteranopia (green-blind)

#001C44

Tritanopia (blue-blind)

#00252C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121b45;
/* rgb */ color: rgb(18, 27, 69);
/* oklch */ color: oklch(24.2% 0.080 270.3);

Tailwind

colors: {
  custom: {
    50: '#575679',
    500: '#121b45',
    950: '#000000',
  },
}

SCSS

$custom: #121b45;
$custom-light: #575679;
$custom-dark: #000000;

JSON

{
  "hex": "#121b45",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 69
  },
  "hsl": {
    "h": 229.412,
    "s": 58.621,
    "l": 17.059
  },
  "oklch": {
    "l": 0.24231,
    "c": 0.07965,
    "h": 270.3
  },
  "luminance": 0.01342
}

Semantic roles & 50–950 ramp

primary

#121B45

secondary

#7E7135

accent

#C646E2

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #121B45

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

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