#1A4FB3#1A4FB3

#1A4FB3 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.169 H 261.6°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#1A4FB3
RGB	rgb(26, 79, 179)
HSL	hsl(219, 75%, 40%)
HSV	hsv(219, 85%, 70%)
CMYK	cmyk(85.5%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(36.11, 21.65, -57.79)
CIE-LCH	lch(36.11, 61.71, 290.54°)
OKLab	oklab(45.67% -0.0247 -0.1669)
OKLCH	oklch(45.67% 0.169 261.6)
XYZ	xyz(11.3557, 9.0648, 43.7903)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A4FB3 #B37E1A

analogous

#1A9BB3 #1A4FB3 #321AB3

triadic

#1A4FB3 #B31A4F #4FB31A

tetradic

#1A4FB3 #B31A9B #B37E1A #1AB332

square

#1A4FB3 #B31A9B #B37E1A #1AB332

split-complementary

#1A4FB3 #B3321A #9BB31A

monochromatic

#0A2048 #12377E #1A4FB3 #2A69E0 #608FE8

Accessibility & contrast

On white

7.46

#1A4FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#1A4FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A4FB3

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A4FB3	#FFFFFF	#000000	##FFFFFF
##1A4FB3	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB6

Deuteranopia (green-blind)

#004EB1

Tritanopia (blue-blind)

#006879

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1a4fb3;
/* rgb */ color: rgb(26, 79, 179);
/* oklch */ color: oklch(45.7% 0.169 261.6);

Tailwind

colors: {
  custom: {
    50: '#747fcb',
    500: '#1a4fb3',
    950: '#000000',
  },
}

SCSS

$custom: #1a4fb3;
$custom-light: #747fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a4fb3",
  "rgb": {
    "r": 26,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 219.216,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.45673,
    "c": 0.16876,
    "h": 261.6
  },
  "luminance": 0.09066
}

Semantic roles & 50–950 ramp

primary

#1A4FB3

secondary

#CCA65D

accent

#B137F1

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1A4FB3

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

Preview Lab → · Contrast checker → · Palette generator →