#151B35#151B35

#151B35 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.1% C 0.051 H 272.1°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#151B35
RGB	rgb(21, 27, 53)
HSL	hsl(229, 43%, 15%)
HSV	hsv(229, 60%, 21%)
CMYK	cmyk(60.4%, 49.1%, 0%, 79.2%)
CIE-LAB	lab(10.56, 6.42, -17.97)
CIE-LCH	lch(10.56, 19.08, 289.65°)
OKLab	oklab(23.13% 0.0019 -0.0509)
OKLCH	oklch(23.13% 0.051 272.1)
XYZ	xyz(1.3436, 1.2003, 3.5283)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B35 #352F15

analogous

#152B35 #151B35 #1F1535

triadic

#151B35 #35151B #1B3515

tetradic

#151B35 #35152B #352F15 #15351F

square

#151B35 #35152B #352F15 #15351F

split-complementary

#151B35 #351F15 #2B3515

monochromatic

#090B16 #090B16 #151B35 #263161 #38488D

Accessibility & contrast

On white

16.94

#151B35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#151B35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B35

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B35	#FFFFFF	#000000	##FFFFFF
##151B35	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101E36

Deuteranopia (green-blind)

#0D1B34

Tritanopia (blue-blind)

#072125

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151b35;
/* rgb */ color: rgb(21, 27, 53);
/* oklch */ color: oklch(23.1% 0.051 272.1);

Tailwind

colors: {
  custom: {
    50: '#55576c',
    500: '#151b35',
    950: '#000000',
  },
}

SCSS

$custom: #151b35;
$custom-light: #55576c;
$custom-dark: #000000;

JSON

{
  "hex": "#151b35",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 53
  },
  "hsl": {
    "h": 228.75,
    "s": 43.243,
    "l": 14.51
  },
  "oklch": {
    "l": 0.23131,
    "c": 0.05096,
    "h": 272.1
  },
  "luminance": 0.012
}

Semantic roles & 50–950 ramp

primary

#151B35

secondary

#6C633A

accent

#BB55D3

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030307

muted

#78787A

Preview Lab

Preview with #151B35

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

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