#151F71#151F71

#151F71 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.7% C 0.139 H 269.6°. Best body text is #FFFFFF at 14.32:1 contrast (WCAG AA passes).

Color values

HEX	#151F71
RGB	rgb(21, 31, 113)
HSL	hsl(233, 69%, 26%)
HSV	hsv(233, 81%, 44%)
CMYK	cmyk(81.4%, 72.6%, 0%, 55.7%)
CIE-LAB	lab(17.14, 27.82, -48.12)
CIE-LCH	lch(17.14, 55.58, 300.03°)
OKLab	oklab(29.7% -0.001 -0.1393)
OKLCH	oklch(29.7% 0.139 269.6)
XYZ	xyz(3.7789, 2.3312, 15.8704)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F71 #716715

analogous

#154D71 #151F71 #391571

triadic

#151F71 #71151F #1F7115

tetradic

#151F71 #71154D #716715 #157139

square

#151F71 #71154D #716715 #157139

split-complementary

#151F71 #713915 #4D7115

monochromatic

#05071A #0B113D #151F71 #1F2DA5 #293CD7

Accessibility & contrast

On white

14.32

#151F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#151F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F71

14.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F71	#FFFFFF	#000000	##FFFFFF
##151F71	1.00	14.32	1.47	14.32
#FFFFFF	14.32	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F73

Deuteranopia (green-blind)

#002670

Tritanopia (blue-blind)

#003645

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #151f71;
/* rgb */ color: rgb(21, 31, 113);
/* oklch */ color: oklch(29.7% 0.139 269.6);

Tailwind

colors: {
  custom: {
    50: '#645b9b',
    500: '#151f71',
    950: '#000000',
  },
}

SCSS

$custom: #151f71;
$custom-light: #645b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#151f71",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 113
  },
  "hsl": {
    "h": 233.478,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29699,
    "c": 0.13934,
    "h": 269.6
  },
  "luminance": 0.02332
}

Semantic roles & 50–950 ramp

primary

#151F71

secondary

#A79B3B

accent

#D83CEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #151F71

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

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