#151C5E#151C5E

#151C5E is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.116 H 271.4°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#151C5E
RGB	rgb(21, 28, 94)
HSL	hsl(234, 63%, 23%)
HSV	hsv(234, 78%, 37%)
CMYK	cmyk(77.7%, 70.2%, 0%, 63.1%)
CIE-LAB	lab(14.39, 22.41, -40.16)
CIE-LCH	lch(14.39, 45.99, 299.16°)
OKLab	oklab(27.1% 0.0028 -0.1161)
OKLCH	oklch(27.1% 0.116 271.4)
XYZ	xyz(2.7442, 1.7978, 10.7899)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C5E #5E5715

analogous

#15405E #151C5E #33155E

triadic

#151C5E #5E151C #1C5E15

tetradic

#151C5E #5E1540 #5E5715 #155E33

square

#151C5E #5E1540 #5E5715 #155E33

split-complementary

#151C5E #5E3315 #405E15

monochromatic

#060719 #0A0D2C #151C5E #202B90 #2B3AC2

Accessibility & contrast

On white

15.45

#151C5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#151C5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C5E

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C5E	#FFFFFF	#000000	##FFFFFF
##151C5E	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002860

Deuteranopia (green-blind)

#00215D

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #151c5e;
/* rgb */ color: rgb(21, 28, 94);
/* oklch */ color: oklch(27.1% 0.116 271.4);

Tailwind

colors: {
  custom: {
    50: '#5f588c',
    500: '#151c5e',
    950: '#000000',
  },
}

SCSS

$custom: #151c5e;
$custom-light: #5f588c;
$custom-dark: #000000;

JSON

{
  "hex": "#151c5e",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 94
  },
  "hsl": {
    "h": 234.247,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.27101,
    "c": 0.11611,
    "h": 271.4
  },
  "luminance": 0.01798
}

Semantic roles & 50–950 ramp

primary

#151C5E

secondary

#958D39

accent

#D741E7

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151C5E

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

Preview Lab → · Contrast checker → · Palette generator →