#1A184B#1A184B

#1A184B is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.092 H 279.1°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#1A184B
RGB	rgb(26, 24, 75)
HSL	hsl(242, 52%, 19%)
HSV	hsv(242, 68%, 29%)
CMYK	cmyk(65.3%, 68%, 0%, 70.6%)
CIE-LAB	lab(11.83, 18.60, -31.43)
CIE-LCH	lch(11.83, 36.52, 300.61°)
OKLab	oklab(24.76% 0.0145 -0.0904)
OKLCH	oklch(24.76% 0.092 279.1)
XYZ	xyz(2.0222, 1.3807, 6.8152)
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

#1A184B #494B18

analogous

#18304B #1A184B #34184B

triadic

#1A184B #4B1A18 #184B1A

tetradic

#1A184B #4B1830 #494B18 #184B34

square

#1A184B #4B1830 #494B18 #184B34

split-complementary

#1A184B #4B3418 #304B18

monochromatic

#080717 #0A091D #1A184B #2A2779 #3A36A8

Accessibility & contrast

On white

16.46

#1A184B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1A184B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A184B

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A184B	#FFFFFF	#000000	##FFFFFF
##1A184B	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214D

Deuteranopia (green-blind)

#001D4A

Tritanopia (blue-blind)

#00252E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1a184b;
/* rgb */ color: rgb(26, 24, 75);
/* oklch */ color: oklch(24.8% 0.092 279.1);

Tailwind

colors: {
  custom: {
    50: '#5d557e',
    500: '#1a184b',
    950: '#000000',
  },
}

SCSS

$custom: #1a184b;
$custom-light: #5d557e;
$custom-dark: #000000;

JSON

{
  "hex": "#1a184b",
  "rgb": {
    "r": 26,
    "g": 24,
    "b": 75
  },
  "hsl": {
    "h": 242.353,
    "s": 51.515,
    "l": 19.412
  },
  "oklch": {
    "l": 0.24755,
    "c": 0.09151,
    "h": 279.1
  },
  "luminance": 0.01381
}

Semantic roles & 50–950 ramp

primary

#1A184B

secondary

#7F823D

accent

#DB4DD5

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #1A184B

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

Preview Lab → · Contrast checker → · Palette generator →