#1A3E9B#1A3E9B

#1A3E9B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.157 H 264.3°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E9B
RGB	rgb(26, 62, 155)
HSL	hsl(223, 71%, 35%)
HSV	hsv(223, 83%, 61%)
CMYK	cmyk(83.2%, 60%, 0%, 39.2%)
CIE-LAB	lab(29.49, 23.62, -54.19)
CIE-LCH	lch(29.49, 59.11, 293.55°)
OKLab	oklab(40.08% -0.0157 -0.1567)
OKLCH	oklch(40.08% 0.157 264.3)
XYZ	xyz(8.0629, 6.0304, 31.7430)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E9B #9B771A

analogous

#1A7E9B #1A3E9B #361A9B

triadic

#1A3E9B #9B1A3E #3E9B1A

tetradic

#1A3E9B #9B1A7E #9B771A #1A9B36

square

#1A3E9B #9B1A7E #9B771A #1A9B36

split-complementary

#1A3E9B #9B361A #7E9B1A

monochromatic

#081432 #112967 #1A3E9B #2353CF #4E77E1

Accessibility & contrast

On white

9.52

#1A3E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1A3E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E9B

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E9B	#FFFFFF	#000000	##FFFFFF
##1A3E9B	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9E

Deuteranopia (green-blind)

#004099

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3e9b;
/* rgb */ color: rgb(26, 62, 155);
/* oklch */ color: oklch(40.1% 0.157 264.3);

Tailwind

colors: {
  custom: {
    50: '#6e72b9',
    500: '#1a3e9b',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e9b;
$custom-light: #6e72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e9b",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 155
  },
  "hsl": {
    "h": 223.256,
    "s": 71.271,
    "l": 35.49
  },
  "oklch": {
    "l": 0.40082,
    "c": 0.15747,
    "h": 264.3
  },
  "luminance": 0.06031
}

Semantic roles & 50–950 ramp

primary

#1A3E9B

secondary

#C4A34D

accent

#BC3AEE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1A3E9B

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

Preview Lab → · Contrast checker → · Palette generator →