#1A3E8E#1A3E8E

#1A3E8E is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.139 H 263.2°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E8E
RGB	rgb(26, 62, 142)
HSL	hsl(221, 69%, 33%)
HSV	hsv(221, 82%, 56%)
CMYK	cmyk(81.7%, 56.3%, 0%, 44.3%)
CIE-LAB	lab(28.42, 18.39, -47.96)
CIE-LCH	lch(28.42, 51.36, 290.98°)
OKLab	oklab(38.95% -0.0165 -0.1384)
OKLCH	oklch(38.95% 0.139 263.2)
XYZ	xyz(7.0294, 5.6170, 26.2997)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E8E #8E6A1A

analogous

#1A788E #1A3E8E #301A8E

triadic

#1A3E8E #8E1A3E #3E8E1A

tetradic

#1A3E8E #8E1A78 #8E6A1A #1A8E30

square

#1A3E8E #8E1A78 #8E6A1A #1A8E30

split-complementary

#1A3E8E #8E301A #788E1A

monochromatic

#071127 #11275A #1A3E8E #2355C2 #4574DD

Accessibility & contrast

On white

9.89

#1A3E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1A3E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E8E

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E8E	#FFFFFF	#000000	##FFFFFF
##1A3E8E	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004991

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a3e8e;
/* rgb */ color: rgb(26, 62, 142);
/* oklch */ color: oklch(38.9% 0.139 263.2);

Tailwind

colors: {
  custom: {
    50: '#6b72b0',
    500: '#1a3e8e',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e8e;
$custom-light: #6b72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e8e",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 142
  },
  "hsl": {
    "h": 221.379,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38948,
    "c": 0.13937,
    "h": 263.2
  },
  "luminance": 0.05618
}

Semantic roles & 50–950 ramp

primary

#1A3E8E

secondary

#BE9945

accent

#B53CEC

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1A3E8E

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

Preview Lab → · Contrast checker → · Palette generator →