#1A45B3#1A45B3

#1A45B3 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.181 H 264.0°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#1A45B3
RGB	rgb(26, 69, 179)
HSL	hsl(223, 75%, 40%)
HSV	hsv(223, 85%, 70%)
CMYK	cmyk(85.5%, 61.5%, 0%, 29.8%)
CIE-LAB	lab(33.41, 28.35, -62.18)
CIE-LCH	lch(33.41, 68.34, 294.51°)
OKLab	oklab(43.65% -0.019 -0.18)
OKLCH	oklch(43.65% 0.181 264)
XYZ	xyz(10.6879, 7.7292, 43.5677)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A45B3 #B3881A

analogous

#1A92B3 #1A45B3 #3B1AB3

triadic

#1A45B3 #B31A45 #45B31A

tetradic

#1A45B3 #B31A92 #B3881A #1AB33B

square

#1A45B3 #B31A92 #B3881A #1AB33B

split-complementary

#1A45B3 #B33B1A #92B31A

monochromatic

#0A1C48 #12307E #1A45B3 #2A5DE0 #6086E8

Accessibility & contrast

On white

8.25

#1A45B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1A45B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A45B3

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A45B3	#FFFFFF	#000000	##FFFFFF
##1A45B3	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#0048B1

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1a45b3;
/* rgb */ color: rgb(26, 69, 179);
/* oklch */ color: oklch(43.6% 0.181 264.0);

Tailwind

colors: {
  custom: {
    50: '#7478cb',
    500: '#1a45b3',
    950: '#000000',
  },
}

SCSS

$custom: #1a45b3;
$custom-light: #7478cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a45b3",
  "rgb": {
    "r": 26,
    "g": 69,
    "b": 179
  },
  "hsl": {
    "h": 223.137,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43648,
    "c": 0.18102,
    "h": 264
  },
  "luminance": 0.07731
}

Semantic roles & 50–950 ramp

primary

#1A45B3

secondary

#CCAD5D

accent

#BD37F1

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1A45B3

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

Preview Lab → · Contrast checker → · Palette generator →