#1A1F74#1A1F74

#1A1F74 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.3% C 0.142 H 271.7°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#1A1F74
RGB	rgb(26, 31, 116)
HSL	hsl(237, 63%, 28%)
HSV	hsv(237, 78%, 45%)
CMYK	cmyk(77.6%, 73.3%, 0%, 54.5%)
CIE-LAB	lab(17.74, 29.47, -49.06)
CIE-LCH	lch(17.74, 57.23, 300.99°)
OKLab	oklab(30.31% 0.0043 -0.142)
OKLCH	oklch(30.31% 0.142 271.7)
XYZ	xyz(4.0673, 2.4601, 16.7801)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1F74 #746F1A

analogous

#1A4C74 #1A1F74 #421A74

triadic

#1A1F74 #741A1F #1F741A

tetradic

#1A1F74 #741A4C #746F1A #1A7442

square

#1A1F74 #741A4C #746F1A #1A7442

split-complementary

#1A1F74 #74421A #4C741A

monochromatic

#060719 #0F1242 #1A1F74 #252CA6 #363FD2

Accessibility & contrast

On white

14.07

#1A1F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1A1F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1F74

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1F74	#FFFFFF	#000000	##FFFFFF
##1A1F74	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003077

Deuteranopia (green-blind)

#002772

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1a1f74;
/* rgb */ color: rgb(26, 31, 116);
/* oklch */ color: oklch(30.3% 0.142 271.7);

Tailwind

colors: {
  custom: {
    50: '#675b9d',
    500: '#1a1f74',
    950: '#000000',
  },
}

SCSS

$custom: #1a1f74;
$custom-light: #675b9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1f74",
  "rgb": {
    "r": 26,
    "g": 31,
    "b": 116
  },
  "hsl": {
    "h": 236.667,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30305,
    "c": 0.14202,
    "h": 271.7
  },
  "luminance": 0.02461
}

Semantic roles & 50–950 ramp

primary

#1A1F74

secondary

#A9A341

accent

#DD41E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1A1F74

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

Preview Lab → · Contrast checker → · Palette generator →