#1A174E#1A174E

#1A174E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.098 H 279.0°. Best body text is #FFFFFF at 16.45:1 contrast (WCAG AA passes).

Color values

HEX	#1A174E
RGB	rgb(26, 23, 78)
HSL	hsl(243, 54%, 20%)
HSV	hsv(243, 71%, 31%)
CMYK	cmyk(66.7%, 70.5%, 0%, 69.4%)
CIE-LAB	lab(11.84, 20.46, -33.48)
CIE-LCH	lch(11.84, 39.24, 301.43°)
OKLab	oklab(24.85% 0.0153 -0.0964)
OKLCH	oklch(24.85% 0.098 279)
XYZ	xyz(2.1071, 1.3823, 7.3620)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A174E #4B4E17

analogous

#172F4E #1A174E #36174E

triadic

#1A174E #4E1A17 #174E1A

tetradic

#1A174E #4E172F #4B4E17 #174E36

square

#1A174E #4E172F #4B4E17 #174E36

split-complementary

#1A174E #4E3617 #2F4E17

monochromatic

#080718 #0A091F #1A174E #2A257D #3A33AD

Accessibility & contrast

On white

16.45

#1A174E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1A174E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A174E

16.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A174E	#FFFFFF	#000000	##FFFFFF
##1A174E	1.00	16.45	1.28	16.45
#FFFFFF	16.45	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001D4D

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1a174e;
/* rgb */ color: rgb(26, 23, 78);
/* oklch */ color: oklch(24.9% 0.098 279.0);

Tailwind

colors: {
  custom: {
    50: '#5e5480',
    500: '#1a174e',
    950: '#000000',
  },
}

SCSS

$custom: #1a174e;
$custom-light: #5e5480;
$custom-dark: #000000;

JSON

{
  "hex": "#1a174e",
  "rgb": {
    "r": 26,
    "g": 23,
    "b": 78
  },
  "hsl": {
    "h": 243.273,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.2485,
    "c": 0.09759,
    "h": 279
  },
  "luminance": 0.01382
}

Semantic roles & 50–950 ramp

primary

#1A174E

secondary

#81853C

accent

#DE4AD6

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1A174E

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

Preview Lab → · Contrast checker → · Palette generator →