#151B30#151B30

#151B30 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.8% C 0.042 H 270.7°. Best body text is #FFFFFF at 17.05:1 contrast (WCAG AA passes).

Color values

HEX	#151B30
RGB	rgb(21, 27, 48)
HSL	hsl(227, 39%, 14%)
HSV	hsv(227, 56%, 19%)
CMYK	cmyk(56.2%, 43.8%, 0%, 81.2%)
CIE-LAB	lab(10.23, 4.46, -14.87)
CIE-LCH	lch(10.23, 15.52, 286.69°)
OKLab	oklab(22.77% 0.0005 -0.0419)
OKLCH	oklch(22.77% 0.042 270.7)
XYZ	xyz(1.2345, 1.1566, 2.9539)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B30 #302A15

analogous

#152830 #151B30 #1C1530

triadic

#151B30 #30151B #1B3015

tetradic

#151B30 #301528 #302A15 #15301C

square

#151B30 #301528 #302A15 #15301C

split-complementary

#151B30 #301C15 #283015

monochromatic

#090C15 #090C15 #151B30 #28335B #3A4B85

Accessibility & contrast

On white

17.05

#151B30 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#151B30 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B30

17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B30	#FFFFFF	#000000	##FFFFFF
##151B30	1.00	17.05	1.23	17.05
#FFFFFF	17.05	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131D31

Deuteranopia (green-blind)

#111B30

Tritanopia (blue-blind)

#0B1F23

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #151b30;
/* rgb */ color: rgb(21, 27, 48);
/* oklch */ color: oklch(22.8% 0.042 270.7);

Tailwind

colors: {
  custom: {
    50: '#545768',
    500: '#151b30',
    950: '#000000',
  },
}

SCSS

$custom: #151b30;
$custom-light: #545768;
$custom-dark: #000000;

JSON

{
  "hex": "#151b30",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 48
  },
  "hsl": {
    "h": 226.667,
    "s": 39.13,
    "l": 13.529
  },
  "oklch": {
    "l": 0.22774,
    "c": 0.04187,
    "h": 270.7
  },
  "luminance": 0.01157
}

Semantic roles & 50–950 ramp

primary

#151B30

secondary

#665D3A

accent

#B559CF

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#030306

muted

#78787A

Preview Lab

Preview with #151B30

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

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