#1A2571#1A2571

#1A2571 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.1% C 0.130 H 270.3°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#1A2571
RGB	rgb(26, 37, 113)
HSL	hsl(232, 63%, 27%)
HSV	hsv(232, 77%, 44%)
CMYK	cmyk(77%, 67.3%, 0%, 55.7%)
CIE-LAB	lab(18.95, 24.25, -45.14)
CIE-LCH	lch(18.95, 51.24, 298.25°)
OKLab	oklab(31.09% 0.0007 -0.1305)
OKLCH	oklch(31.09% 0.13 270.3)
XYZ	xyz(4.0672, 2.7346, 15.9331)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2571 #71661A

analogous

#1A5171 #1A2571 #3B1A71

triadic

#1A2571 #711A25 #25711A

tetradic

#1A2571 #711A51 #71661A #1A713B

square

#1A2571 #711A51 #71661A #1A713B

split-complementary

#1A2571 #713B1A #51711A

monochromatic

#060819 #0F153F #1A2571 #2535A3 #3549D0

Accessibility & contrast

On white

13.57

#1A2571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1A2571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2571

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2571	#FFFFFF	#000000	##FFFFFF
##1A2571	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003273

Deuteranopia (green-blind)

#002A70

Tritanopia (blue-blind)

#003947

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1a2571;
/* rgb */ color: rgb(26, 37, 113);
/* oklch */ color: oklch(31.1% 0.130 270.3);

Tailwind

colors: {
  custom: {
    50: '#655f9b',
    500: '#1a2571',
    950: '#000000',
  },
}

SCSS

$custom: #1a2571;
$custom-light: #655f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2571",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 113
  },
  "hsl": {
    "h": 232.414,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.31092,
    "c": 0.13047,
    "h": 270.3
  },
  "luminance": 0.02735
}

Semantic roles & 50–950 ramp

primary

#1A2571

secondary

#A69941

accent

#D142E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1A2571

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

Preview Lab → · Contrast checker → · Palette generator →