#121C45#121C45

#121C45 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.078 H 269.5°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#121C45
RGB	rgb(18, 28, 69)
HSL	hsl(228, 59%, 17%)
HSV	hsv(228, 74%, 27%)
CMYK	cmyk(73.9%, 59.4%, 0%, 72.9%)
CIE-LAB	lab(11.88, 11.56, -27.20)
CIE-LCH	lch(11.88, 29.56, 293.02°)
OKLab	oklab(24.47% -0.0007 -0.0781)
OKLCH	oklch(24.47% 0.078 269.5)
XYZ	xyz(1.7385, 1.3886, 5.8055)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C45 #453B12

analogous

#123645 #121C45 #221245

triadic

#121C45 #45121C #1C4512

tetradic

#121C45 #451236 #453B12 #124522

square

#121C45 #451236 #453B12 #124522

split-complementary

#121C45 #452212 #364512

monochromatic

#060A18 #060A18 #121C45 #1F3076 #2B43A6

Accessibility & contrast

On white

16.43

#121C45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121C45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C45

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C45	#FFFFFF	#000000	##FFFFFF
##121C45	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032246

Deuteranopia (green-blind)

#001D44

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121c45;
/* rgb */ color: rgb(18, 28, 69);
/* oklch */ color: oklch(24.5% 0.078 269.5);

Tailwind

colors: {
  custom: {
    50: '#575779',
    500: '#121c45',
    950: '#000000',
  },
}

SCSS

$custom: #121c45;
$custom-light: #575779;
$custom-dark: #000000;

JSON

{
  "hex": "#121c45",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 69
  },
  "hsl": {
    "h": 228.235,
    "s": 58.621,
    "l": 17.059
  },
  "oklch": {
    "l": 0.24469,
    "c": 0.07813,
    "h": 269.5
  },
  "luminance": 0.01389
}

Semantic roles & 50–950 ramp

primary

#121C45

secondary

#7E7035

accent

#C346E2

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #121C45

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

Preview Lab → · Contrast checker → · Palette generator →