#121D51#121D51

#121D51 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.096 H 269.4°. Best body text is #FFFFFF at 15.91:1 contrast (WCAG AA passes).

Color values

HEX	#121D51
RGB	rgb(18, 29, 81)
HSL	hsl(230, 64%, 19%)
HSV	hsv(230, 78%, 32%)
CMYK	cmyk(77.8%, 64.2%, 0%, 68.2%)
CIE-LAB	lab(13.24, 15.90, -33.28)
CIE-LCH	lch(13.24, 36.88, 295.53°)
OKLab	oklab(25.82% -0.001 -0.096)
OKLCH	oklch(25.82% 0.096 269.4)
XYZ	xyz(2.1735, 1.6012, 7.9775)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D51 #514612

analogous

#123D51 #121D51 #271251

triadic

#121D51 #51121D #1D5112

tetradic

#121D51 #51123D #514612 #125127

square

#121D51 #51123D #514612 #125127

split-complementary

#121D51 #512712 #3D5112

monochromatic

#060919 #070B1F #121D51 #1D2F83 #2841B5

Accessibility & contrast

On white

15.91

#121D51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#121D51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D51

15.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D51	#FFFFFF	#000000	##FFFFFF
##121D51	1.00	15.91	1.32	15.91
#FFFFFF	15.91	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002553

Deuteranopia (green-blind)

#001F50

Tritanopia (blue-blind)

#002A33

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #121d51;
/* rgb */ color: rgb(18, 29, 81);
/* oklch */ color: oklch(25.8% 0.096 269.4);

Tailwind

colors: {
  custom: {
    50: '#5a5882',
    500: '#121d51',
    950: '#000000',
  },
}

SCSS

$custom: #121d51;
$custom-light: #5a5882;
$custom-dark: #000000;

JSON

{
  "hex": "#121d51",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 81
  },
  "hsl": {
    "h": 229.524,
    "s": 63.636,
    "l": 19.412
  },
  "oklch": {
    "l": 0.25815,
    "c": 0.09599,
    "h": 269.4
  },
  "luminance": 0.01601
}

Semantic roles & 50–950 ramp

primary

#121D51

secondary

#8A7B35

accent

#CA41E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #121D51

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

Preview Lab → · Contrast checker → · Palette generator →