#151B50#151B50

#151B50 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.5% C 0.096 H 272.6°. Best body text is #FFFFFF at 16.10:1 contrast (WCAG AA passes).

Color values

HEX	#151B50
RGB	rgb(21, 27, 80)
HSL	hsl(234, 58%, 20%)
HSV	hsv(234, 74%, 31%)
CMYK	cmyk(73.7%, 66.3%, 0%, 68.6%)
CIE-LAB	lab(12.75, 17.46, -33.38)
CIE-LCH	lch(12.75, 37.67, 297.61°)
OKLab	oklab(25.48% 0.0044 -0.0962)
OKLCH	oklch(25.48% 0.096 272.6)
XYZ	xyz(2.1487, 1.5223, 7.7685)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B50 #504A15

analogous

#153950 #151B50 #2C1550

triadic

#151B50 #50151B #1B5015

tetradic

#151B50 #501539 #504A15 #15502C

square

#151B50 #501539 #504A15 #15502C

split-complementary

#151B50 #502C15 #395015

monochromatic

#060818 #080B20 #151B50 #222B80 #2E3CB1

Accessibility & contrast

On white

16.10

#151B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#151B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B50

16.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B50	#FFFFFF	#000000	##FFFFFF
##151B50	1.00	16.10	1.30	16.10
#FFFFFF	16.10	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002452

Deuteranopia (green-blind)

#001E4F

Tritanopia (blue-blind)

#002832

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #151b50;
/* rgb */ color: rgb(21, 27, 80);
/* oklch */ color: oklch(25.5% 0.096 272.6);

Tailwind

colors: {
  custom: {
    50: '#5b5782',
    500: '#151b50',
    950: '#000000',
  },
}

SCSS

$custom: #151b50;
$custom-light: #5b5782;
$custom-dark: #000000;

JSON

{
  "hex": "#151b50",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 80
  },
  "hsl": {
    "h": 233.898,
    "s": 58.416,
    "l": 19.804
  },
  "oklch": {
    "l": 0.25475,
    "c": 0.09633,
    "h": 272.6
  },
  "luminance": 0.01522
}

Semantic roles & 50–950 ramp

primary

#151B50

secondary

#888039

accent

#D246E2

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #151B50

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

Preview Lab → · Contrast checker → · Palette generator →