#151C71#151C71

#151C71 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.2% C 0.143 H 270.2°. Best body text is #FFFFFF at 14.62:1 contrast (WCAG AA passes).

Color values

HEX	#151C71
RGB	rgb(21, 28, 113)
HSL	hsl(235, 69%, 26%)
HSV	hsv(235, 81%, 44%)
CMYK	cmyk(81.4%, 75.2%, 0%, 55.7%)
CIE-LAB	lab(16.41, 29.80, -49.31)
CIE-LCH	lch(16.41, 57.62, 301.15°)
OKLab	oklab(29.18% 0.0005 -0.1428)
OKLCH	oklch(29.18% 0.143 270.2)
XYZ	xyz(3.7041, 2.1818, 15.8455)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C71 #716A15

analogous

#154A71 #151C71 #3C1571

triadic

#151C71 #71151C #1C7115

tetradic

#151C71 #71154A #716A15 #15713C

square

#151C71 #71154A #716A15 #15713C

split-complementary

#151C71 #713C15 #4A7115

monochromatic

#05061A #0B0F3D #151C71 #1F29A5 #2936D7

Accessibility & contrast

On white

14.62

#151C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#151C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C71

14.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C71	#FFFFFF	#000000	##FFFFFF
##151C71	1.00	14.62	1.44	14.62
#FFFFFF	14.62	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D74

Deuteranopia (green-blind)

#00246F

Tritanopia (blue-blind)

#003444

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #151c71;
/* rgb */ color: rgb(21, 28, 113);
/* oklch */ color: oklch(29.2% 0.143 270.2);

Tailwind

colors: {
  custom: {
    50: '#64599b',
    500: '#151c71',
    950: '#000000',
  },
}

SCSS

$custom: #151c71;
$custom-light: #64599b;
$custom-dark: #000000;

JSON

{
  "hex": "#151c71",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 113
  },
  "hsl": {
    "h": 235.435,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29178,
    "c": 0.14281,
    "h": 270.2
  },
  "luminance": 0.02182
}

Semantic roles & 50–950 ramp

primary

#151C71

secondary

#A79F3B

accent

#DE3CEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #151C71

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

Preview Lab → · Contrast checker → · Palette generator →