#151D6B#151D6B

#151D6B is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.7% C 0.133 H 270.3°. Best body text is #FFFFFF at 14.79:1 contrast (WCAG AA passes).

Color values

HEX	#151D6B
RGB	rgb(21, 29, 107)
HSL	hsl(234, 67%, 25%)
HSV	hsv(234, 80%, 42%)
CMYK	cmyk(80.4%, 72.9%, 0%, 58%)
CIE-LAB	lab(16.00, 26.84, -46.09)
CIE-LCH	lch(16.00, 53.34, 300.21°)
OKLab	oklab(28.68% 0.0008 -0.1334)
OKLCH	oklch(28.68% 0.133 270.3)
XYZ	xyz(3.4016, 2.0993, 14.1330)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D6B #6B6315

analogous

#15486B #151D6B #38156B

triadic

#151D6B #6B151D #1D6B15

tetradic

#151D6B #6B1548 #6B6315 #156B38

square

#151D6B #6B1548 #6B6315 #156B38

split-complementary

#151D6B #6B3815 #486B15

monochromatic

#05071A #0B0F38 #151D6B #1F2B9E #2939D1

Accessibility & contrast

On white

14.79

#151D6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#151D6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D6B

14.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D6B	#FFFFFF	#000000	##FFFFFF
##151D6B	1.00	14.79	1.42	14.79
#FFFFFF	14.79	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6D

Deuteranopia (green-blind)

#00246A

Tritanopia (blue-blind)

#003341

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #151d6b;
/* rgb */ color: rgb(21, 29, 107);
/* oklch */ color: oklch(28.7% 0.133 270.3);

Tailwind

colors: {
  custom: {
    50: '#635996',
    500: '#151d6b',
    950: '#000000',
  },
}

SCSS

$custom: #151d6b;
$custom-light: #635996;
$custom-dark: #000000;

JSON

{
  "hex": "#151d6b",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 107
  },
  "hsl": {
    "h": 234.419,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28683,
    "c": 0.13342,
    "h": 270.3
  },
  "luminance": 0.021
}

Semantic roles & 50–950 ramp

primary

#151D6B

secondary

#A2983A

accent

#DA3EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #151D6B

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

Preview Lab → · Contrast checker → · Palette generator →