#041B3F#041B3F

#041B3F is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 22.9% C 0.075 H 258.7°. Best body text is #FFFFFF at 17.02:1 contrast (WCAG AA passes).

Color values

HEX	#041B3F
RGB	rgb(4, 27, 63)
HSL	hsl(217, 88%, 13%)
HSV	hsv(217, 94%, 25%)
CMYK	cmyk(93.7%, 57.1%, 0%, 75.3%)
CIE-LAB	lab(10.32, 7.30, -25.55)
CIE-LCH	lch(10.32, 26.57, 285.94°)
OKLab	oklab(22.92% -0.0147 -0.0736)
OKLCH	oklch(22.92% 0.075 258.7)
XYZ	xyz(1.3389, 1.1684, 4.8566)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#041B3F #3F2804

analogous

#04383F #041B3F #0A043F

triadic

#041B3F #3F041B #1B3F04

tetradic

#041B3F #3F0438 #3F2804 #043F0A

square

#041B3F #3F0438 #3F2804 #043F0A

split-complementary

#041B3F #3F0A04 #383F04

monochromatic

#020C1D #020C1D #041B3F #083479 #0B4CB2

Accessibility & contrast

On white

17.02

#041B3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#041B3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #041B3F

17.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##041B3F	#FFFFFF	#000000	##FFFFFF
##041B3F	1.00	17.02	1.23	17.02
#FFFFFF	17.02	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#051F40

Deuteranopia (green-blind)

#001A3E

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #041b3f;
/* rgb */ color: rgb(4, 27, 63);
/* oklch */ color: oklch(22.9% 0.075 258.7);

Tailwind

colors: {
  custom: {
    50: '#505674',
    500: '#041b3f',
    950: '#000000',
  },
}

SCSS

$custom: #041b3f;
$custom-light: #505674;
$custom-dark: #000000;

JSON

{
  "hex": "#041b3f",
  "rgb": {
    "r": 4,
    "g": 27,
    "b": 63
  },
  "hsl": {
    "h": 216.61,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.22922,
    "c": 0.07503,
    "h": 258.7
  },
  "luminance": 0.01169
}

Semantic roles & 50–950 ramp

primary

#041B3F

secondary

#805A1E

accent

#AB2AFE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020308

muted

#78787B

Preview Lab

Preview with #041B3F

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

Preview Lab → · Contrast checker → · Palette generator →