#03153A#03153A

#03153A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 20.8% C 0.076 H 261.2°. Best body text is #FFFFFF at 17.92:1 contrast (WCAG AA passes).

Color values

HEX	#03153A
RGB	rgb(3, 21, 58)
HSL	hsl(220, 90%, 12%)
HSV	hsv(220, 95%, 23%)
CMYK	cmyk(94.8%, 63.8%, 0%, 77.3%)
CIE-LAB	lab(7.78, 9.54, -26.11)
CIE-LCH	lch(7.78, 27.80, 290.08°)
OKLab	oklab(20.83% -0.0117 -0.0754)
OKLCH	oklch(20.83% 0.076 261.2)
XYZ	xyz(1.0692, 0.8610, 4.1120)
Luminance	0.0086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03153A #3A2803

analogous

#03313A #03153A #0D033A

triadic

#03153A #3A0315 #153A03

tetradic

#03153A #3A0331 #3A2803 #033A0D

square

#03153A #3A0331 #3A2803 #033A0D

split-complementary

#03153A #3A0D03 #313A03

monochromatic

#020B1D #020B1D #03153A #062A74 #093FAE

Accessibility & contrast

On white

17.92

#03153A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#03153A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03153A

17.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03153A	#FFFFFF	#000000	##FFFFFF
##03153A	1.00	17.92	1.17	17.92
#FFFFFF	17.92	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3B

Deuteranopia (green-blind)

#001539

Tritanopia (blue-blind)

#001E24

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #03153a;
/* rgb */ color: rgb(3, 21, 58);
/* oklch */ color: oklch(20.8% 0.076 261.2);

Tailwind

colors: {
  custom: {
    50: '#4e5170',
    500: '#03153a',
    950: '#000000',
  },
}

SCSS

$custom: #03153a;
$custom-light: #4e5170;
$custom-dark: #000000;

JSON

{
  "hex": "#03153a",
  "rgb": {
    "r": 3,
    "g": 21,
    "b": 58
  },
  "hsl": {
    "h": 220.364,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.20825,
    "c": 0.07632,
    "h": 261.2
  },
  "luminance": 0.00861
}

Semantic roles & 50–950 ramp

primary

#03153A

secondary

#7D5D1C

accent

#B929FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #03153A

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

Preview Lab → · Contrast checker → · Palette generator →