#1A4BB3#1A4BB3

#1A4BB3 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.8% C 0.174 H 262.6°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#1A4BB3
RGB	rgb(26, 75, 179)
HSL	hsl(221, 75%, 40%)
HSV	hsv(221, 85%, 70%)
CMYK	cmyk(85.5%, 58.1%, 0%, 29.8%)
CIE-LAB	lab(35.01, 24.34, -59.57)
CIE-LCH	lch(35.01, 64.35, 292.22°)
OKLab	oklab(44.85% -0.0223 -0.1722)
OKLCH	oklch(44.85% 0.174 262.6)
XYZ	xyz(11.0758, 8.5051, 43.6970)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A4BB3 #B3821A

analogous

#1A98B3 #1A4BB3 #351AB3

triadic

#1A4BB3 #B31A4B #4BB31A

tetradic

#1A4BB3 #B31A98 #B3821A #1AB335

square

#1A4BB3 #B31A98 #B3821A #1AB335

split-complementary

#1A4BB3 #B3351A #98B31A

monochromatic

#0A1E48 #12357E #1A4BB3 #2A64E0 #608BE8

Accessibility & contrast

On white

7.77

#1A4BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1A4BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A4BB3

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A4BB3	#FFFFFF	#000000	##FFFFFF
##1A4BB3	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB7

Deuteranopia (green-blind)

#004CB1

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1a4bb3;
/* rgb */ color: rgb(26, 75, 179);
/* oklch */ color: oklch(44.8% 0.174 262.6);

Tailwind

colors: {
  custom: {
    50: '#747ccb',
    500: '#1a4bb3',
    950: '#000000',
  },
}

SCSS

$custom: #1a4bb3;
$custom-light: #747ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a4bb3",
  "rgb": {
    "r": 26,
    "g": 75,
    "b": 179
  },
  "hsl": {
    "h": 220.784,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.44847,
    "c": 0.17369,
    "h": 262.6
  },
  "luminance": 0.08506
}

Semantic roles & 50–950 ramp

primary

#1A4BB3

secondary

#CCA85D

accent

#B537F1

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1A4BB3

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

Preview Lab → · Contrast checker → · Palette generator →