#1A3D91#1A3D91

#1A3D91 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.145 H 263.8°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D91
RGB	rgb(26, 61, 145)
HSL	hsl(222, 70%, 34%)
HSV	hsv(222, 82%, 57%)
CMYK	cmyk(82.1%, 57.9%, 0%, 43.1%)
CIE-LAB	lab(28.38, 20.30, -49.88)
CIE-LCH	lch(28.38, 53.85, 292.14°)
OKLab	oklab(38.99% -0.0156 -0.144)
OKLCH	oklch(38.99% 0.145 263.8)
XYZ	xyz(7.2038, 5.6006, 27.4839)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D91 #916E1A

analogous

#1A7891 #1A3D91 #321A91

triadic

#1A3D91 #911A3D #3D911A

tetradic

#1A3D91 #911A78 #916E1A #1A9132

square

#1A3D91 #911A78 #916E1A #1A9132

split-complementary

#1A3D91 #91321A #78911A

monochromatic

#071129 #11275D #1A3D91 #2353C5 #4774DE

Accessibility & contrast

On white

9.90

#1A3D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1A3D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D91

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D91	#FFFFFF	#000000	##FFFFFF
##1A3D91	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#003E8F

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a3d91;
/* rgb */ color: rgb(26, 61, 145);
/* oklch */ color: oklch(39.0% 0.145 263.8);

Tailwind

colors: {
  custom: {
    50: '#6c71b2',
    500: '#1a3d91',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d91;
$custom-light: #6c71b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d91",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 145
  },
  "hsl": {
    "h": 222.353,
    "s": 69.591,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38991,
    "c": 0.14488,
    "h": 263.8
  },
  "luminance": 0.05601
}

Semantic roles & 50–950 ramp

primary

#1A3D91

secondary

#C09C47

accent

#B83BEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1A3D91

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

Preview Lab → · Contrast checker → · Palette generator →