#1A3DA0#1A3DA0

#1A3DA0 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.166 H 264.8°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#1A3DA0
RGB	rgb(26, 61, 160)
HSL	hsl(224, 72%, 36%)
HSV	hsv(224, 84%, 63%)
CMYK	cmyk(83.8%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(29.65, 26.29, -56.96)
CIE-LCH	lch(29.65, 62.73, 294.77°)
OKLab	oklab(40.33% -0.015 -0.1648)
OKLCH	oklch(40.33% 0.166 264.8)
XYZ	xyz(8.4377, 6.0941, 33.9825)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3DA0 #A07D1A

analogous

#1A80A0 #1A3DA0 #3A1AA0

triadic

#1A3DA0 #A01A3D #3DA01A

tetradic

#1A3DA0 #A01A80 #A07D1A #1AA03A

square

#1A3DA0 #A01A80 #A07D1A #1AA03A

split-complementary

#1A3DA0 #A03A1A #80A01A

monochromatic

#091537 #11296B #1A3DA0 #2351D5 #5278E3

Accessibility & contrast

On white

9.46

#1A3DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1A3DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3DA0

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3DA0	#FFFFFF	#000000	##FFFFFF
##1A3DA0	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00409E

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1a3da0;
/* rgb */ color: rgb(26, 61, 160);
/* oklch */ color: oklch(40.3% 0.166 264.8);

Tailwind

colors: {
  custom: {
    50: '#7072bd',
    500: '#1a3da0',
    950: '#000000',
  },
}

SCSS

$custom: #1a3da0;
$custom-light: #7072bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3da0",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 224.328,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.40334,
    "c": 0.1655,
    "h": 264.8
  },
  "luminance": 0.06095
}

Semantic roles & 50–950 ramp

primary

#1A3DA0

secondary

#C5A750

accent

#BF39EF

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3DA0

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

Preview Lab → · Contrast checker → · Palette generator →