#1A1F79#1A1F79

#1A1F79 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.149 H 271.4°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#1A1F79
RGB	rgb(26, 31, 121)
HSL	hsl(237, 65%, 29%)
HSV	hsv(237, 79%, 47%)
CMYK	cmyk(78.5%, 74.4%, 0%, 52.5%)
CIE-LAB	lab(18.27, 31.33, -51.38)
CIE-LCH	lch(18.27, 60.18, 301.37°)
OKLab	oklab(30.85% 0.0035 -0.1487)
OKLCH	oklch(30.85% 0.149 271.4)
XYZ	xyz(4.3660, 2.5796, 18.3533)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1F79 #79741A

analogous

#1A4F79 #1A1F79 #451A79

triadic

#1A1F79 #791A1F #1F791A

tetradic

#1A1F79 #791A4F #79741A #1A7945

square

#1A1F79 #791A4F #79741A #1A7945

split-complementary

#1A1F79 #79451A #4F791A

monochromatic

#050619 #0F1247 #1A1F79 #252CAB #3941D4

Accessibility & contrast

On white

13.85

#1A1F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1A1F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1F79

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1F79	#FFFFFF	#000000	##FFFFFF
##1A1F79	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317C

Deuteranopia (green-blind)

#002877

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a1f79;
/* rgb */ color: rgb(26, 31, 121);
/* oklch */ color: oklch(30.9% 0.149 271.4);

Tailwind

colors: {
  custom: {
    50: '#685ba1',
    500: '#1a1f79',
    950: '#000000',
  },
}

SCSS

$custom: #1a1f79;
$custom-light: #685ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1f79",
  "rgb": {
    "r": 26,
    "g": 31,
    "b": 121
  },
  "hsl": {
    "h": 236.842,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30852,
    "c": 0.14878,
    "h": 271.4
  },
  "luminance": 0.0258
}

Semantic roles & 50–950 ramp

primary

#1A1F79

secondary

#ADA841

accent

#DF40E8

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1A1F79

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

Preview Lab → · Contrast checker → · Palette generator →