#121C59#121C59

#121C59 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.4% C 0.110 H 269.8°. Best body text is #FFFFFF at 15.72:1 contrast (WCAG AA passes).

Color values

HEX	#121C59
RGB	rgb(18, 28, 89)
HSL	hsl(232, 66%, 21%)
HSV	hsv(232, 80%, 35%)
CMYK	cmyk(79.8%, 68.5%, 0%, 65.1%)
CIE-LAB	lab(13.71, 19.99, -37.93)
CIE-LCH	lch(13.71, 42.87, 297.79°)
OKLab	oklab(26.4% -0.0004 -0.1096)
OKLCH	oklch(26.4% 0.11 269.8)
XYZ	xyz(2.4673, 1.6801, 9.6435)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C59 #594F12

analogous

#123F59 #121C59 #2B1259

triadic

#121C59 #59121C #1C5912

tetradic

#121C59 #59123F #594F12 #12592B

square

#121C59 #59123F #594F12 #12592B

split-complementary

#121C59 #592B12 #3F5912

monochromatic

#050819 #080C26 #121C59 #1C2C8C #273CBF

Accessibility & contrast

On white

15.72

#121C59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#121C59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C59

15.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C59	#FFFFFF	#000000	##FFFFFF
##121C59	1.00	15.72	1.34	15.72
#FFFFFF	15.72	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265B

Deuteranopia (green-blind)

#002058

Tritanopia (blue-blind)

#002C37

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #121c59;
/* rgb */ color: rgb(18, 28, 89);
/* oklch */ color: oklch(26.4% 0.110 269.8);

Tailwind

colors: {
  custom: {
    50: '#5d5889',
    500: '#121c59',
    950: '#000000',
  },
}

SCSS

$custom: #121c59;
$custom-light: #5d5889;
$custom-dark: #000000;

JSON

{
  "hex": "#121c59",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 89
  },
  "hsl": {
    "h": 231.549,
    "s": 66.355,
    "l": 20.98
  },
  "oklch": {
    "l": 0.26402,
    "c": 0.10962,
    "h": 269.8
  },
  "luminance": 0.0168
}

Semantic roles & 50–950 ramp

primary

#121C59

secondary

#928535

accent

#D13FE9

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #121C59

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

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