#1D1F4E#1D1F4E

#1D1F4E is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.8% C 0.085 H 277.2°. Best body text is #FFFFFF at 15.46:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F4E
RGB	rgb(29, 31, 78)
HSL	hsl(238, 46%, 21%)
HSV	hsv(238, 63%, 31%)
CMYK	cmyk(62.8%, 60.3%, 0%, 69.4%)
CIE-LAB	lab(14.35, 15.28, -29.39)
CIE-LCH	lch(14.35, 33.12, 297.47°)
OKLab	oklab(26.77% 0.0106 -0.0842)
OKLCH	oklch(26.77% 0.085 277.2)
XYZ	xyz(2.3714, 1.7911, 7.4270)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F4E #4E4C1D

analogous

#1D374E #1D1F4E #331D4E

triadic

#1D1F4E #4E1D1F #1F4E1D

tetradic

#1D1F4E #4E1D37 #4E4C1D #1D4E33

square

#1D1F4E #4E1D37 #4E4C1D #1D4E33

split-complementary

#1D1F4E #4E331D #374E1D

monochromatic

#080916 #0C0D21 #1D1F4E #2E317B #3E42A7

Accessibility & contrast

On white

15.46

#1D1F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1D1F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F4E

15.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F4E	#FFFFFF	#000000	##FFFFFF
##1D1F4E	1.00	15.46	1.36	15.46
#FFFFFF	15.46	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#022650

Deuteranopia (green-blind)

#00224D

Tritanopia (blue-blind)

#022A33

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1d1f4e;
/* rgb */ color: rgb(29, 31, 78);
/* oklch */ color: oklch(26.8% 0.085 277.2);

Tailwind

colors: {
  custom: {
    50: '#5e5a80',
    500: '#1d1f4e',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f4e;
$custom-light: #5e5a80;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f4e",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 78
  },
  "hsl": {
    "h": 237.551,
    "s": 45.794,
    "l": 20.98
  },
  "oklch": {
    "l": 0.26769,
    "c": 0.08486,
    "h": 277.2
  },
  "luminance": 0.01791
}

Semantic roles & 50–950 ramp

primary

#1D1F4E

secondary

#838144

accent

#D052D5

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#05030A

muted

#79787C

Preview Lab

Preview with #1D1F4E

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

Preview Lab → · Contrast checker → · Palette generator →