#121A57#121A57

#121A57 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.109 H 270.6°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#121A57
RGB	rgb(18, 26, 87)
HSL	hsl(233, 66%, 21%)
HSV	hsv(233, 79%, 34%)
CMYK	cmyk(79.3%, 70.1%, 0%, 65.9%)
CIE-LAB	lab(12.96, 20.62, -37.81)
CIE-LCH	lch(12.96, 43.07, 298.60°)
OKLab	oklab(25.79% 0.0012 -0.1093)
OKLCH	oklch(25.79% 0.109 270.6)
XYZ	xyz(2.3386, 1.5553, 9.1919)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A57 #574F12

analogous

#123C57 #121A57 #2C1257

triadic

#121A57 #57121A #1A5712

tetradic

#121A57 #57123C #574F12 #12572C

square

#121A57 #57123C #574F12 #12572C

split-complementary

#121A57 #572C12 #3C5712

monochromatic

#050819 #080B24 #121A57 #1C298A #2738BC

Accessibility & contrast

On white

16.02

#121A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#121A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A57

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A57	#FFFFFF	#000000	##FFFFFF
##121A57	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#001E56

Tritanopia (blue-blind)

#002A35

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121a57;
/* rgb */ color: rgb(18, 26, 87);
/* oklch */ color: oklch(25.8% 0.109 270.6);

Tailwind

colors: {
  custom: {
    50: '#5c5687',
    500: '#121a57',
    950: '#000000',
  },
}

SCSS

$custom: #121a57;
$custom-light: #5c5687;
$custom-dark: #000000;

JSON

{
  "hex": "#121a57",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 87
  },
  "hsl": {
    "h": 233.043,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25786,
    "c": 0.10932,
    "h": 270.6
  },
  "luminance": 0.01556
}

Semantic roles & 50–950 ramp

primary

#121A57

secondary

#908535

accent

#D53FE9

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #121A57

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

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