#03243B#03243B

#03243B is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.1% C 0.057 H 243.8°. Best body text is #FFFFFF at 15.92:1 contrast (WCAG AA passes).

Color values

HEX	#03243B
RGB	rgb(3, 36, 59)
HSL	hsl(205, 90%, 12%)
HSV	hsv(205, 95%, 23%)
CMYK	cmyk(94.9%, 39%, 0%, 76.9%)
CIE-LAB	lab(13.21, -1.68, -18.10)
CIE-LCH	lch(13.21, 18.18, 264.68°)
OKLab	oklab(25.07% -0.0253 -0.0515)
OKLCH	oklch(25.07% 0.057 243.8)
XYZ	xyz(1.4575, 1.5967, 4.3682)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03243B #3B1A03

analogous

#033B36 #03243B #03083B

triadic

#03243B #3B0324 #243B03

tetradic

#03243B #36033B #3B1A03 #083B03

square

#03243B #36033B #3B1A03 #083B03

split-complementary

#03243B #3B0308 #3B3603

monochromatic

#01121D #01121D #03243B #064875 #096BAF

Accessibility & contrast

On white

15.92

#03243B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#03243B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03243B

15.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03243B	#FFFFFF	#000000	##FFFFFF
##03243B	1.00	15.92	1.32	15.92
#FFFFFF	15.92	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19253C

Deuteranopia (green-blind)

#11203B

Tritanopia (blue-blind)

#002A2C

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #03243b;
/* rgb */ color: rgb(3, 36, 59);
/* oklch */ color: oklch(25.1% 0.057 243.8);

Tailwind

colors: {
  custom: {
    50: '#4e5e71',
    500: '#03243b',
    950: '#000000',
  },
}

SCSS

$custom: #03243b;
$custom-light: #4e5e71;
$custom-dark: #000000;

JSON

{
  "hex": "#03243b",
  "rgb": {
    "r": 3,
    "g": 36,
    "b": 59
  },
  "hsl": {
    "h": 204.643,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.25065,
    "c": 0.05741,
    "h": 243.8
  },
  "luminance": 0.01597
}

Semantic roles & 50–950 ramp

primary

#03243B

secondary

#7E441C

accent

#8129FF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #03243B

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

Preview Lab → · Contrast checker → · Palette generator →