#121A58#121A58

#121A58 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.111 H 270.6°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#121A58
RGB	rgb(18, 26, 88)
HSL	hsl(233, 66%, 21%)
HSV	hsv(233, 80%, 35%)
CMYK	cmyk(79.5%, 70.5%, 0%, 65.5%)
CIE-LAB	lab(13.06, 21.03, -38.32)
CIE-LCH	lch(13.06, 43.71, 298.75°)
OKLab	oklab(25.89% 0.0011 -0.1108)
OKLCH	oklch(25.89% 0.111 270.6)
XYZ	xyz(2.3797, 1.5717, 9.4086)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A58 #585012

analogous

#123D58 #121A58 #2D1258

triadic

#121A58 #58121A #1A5812

tetradic

#121A58 #58123D #585012 #12582D

square

#121A58 #58123D #585012 #12582D

split-complementary

#121A58 #582D12 #3D5812

monochromatic

#050819 #080B25 #121A58 #1C298B #2738BE

Accessibility & contrast

On white

15.98

#121A58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#121A58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A58

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A58	#FFFFFF	#000000	##FFFFFF
##121A58	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255A

Deuteranopia (green-blind)

#001E57

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #121a58;
/* rgb */ color: rgb(18, 26, 88);
/* oklch */ color: oklch(25.9% 0.111 270.6);

Tailwind

colors: {
  custom: {
    50: '#5c5688',
    500: '#121a58',
    950: '#000000',
  },
}

SCSS

$custom: #121a58;
$custom-light: #5c5688;
$custom-dark: #000000;

JSON

{
  "hex": "#121a58",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 88
  },
  "hsl": {
    "h": 233.143,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25892,
    "c": 0.11081,
    "h": 270.6
  },
  "luminance": 0.01572
}

Semantic roles & 50–950 ramp

primary

#121A58

secondary

#918635

accent

#D63FE9

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #121A58

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

Preview Lab → · Contrast checker → · Palette generator →