#1A55B3#1A55B3

#1A55B3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.9% C 0.161 H 259.8°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1A55B3
RGB	rgb(26, 85, 179)
HSL	hsl(217, 75%, 40%)
HSV	hsv(217, 85%, 70%)
CMYK	cmyk(85.5%, 52.5%, 0%, 29.8%)
CIE-LAB	lab(37.79, 17.64, -55.06)
CIE-LCH	lch(37.79, 57.82, 287.77°)
OKLab	oklab(46.95% -0.0286 -0.1588)
OKLCH	oklch(46.95% 0.161 259.8)
XYZ	xyz(11.8082, 9.9698, 43.9411)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A55B3 #B3781A

analogous

#1AA1B3 #1A55B3 #2C1AB3

triadic

#1A55B3 #B31A55 #55B31A

tetradic

#1A55B3 #B31AA1 #B3781A #1AB32C

square

#1A55B3 #B31AA1 #B3781A #1AB32C

split-complementary

#1A55B3 #B32C1A #A1B31A

monochromatic

#0A2248 #123C7E #1A55B3 #2A70E0 #6094E8

Accessibility & contrast

On white

7.01

#1A55B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#1A55B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A55B3

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A55B3	#FFFFFF	#000000	##FFFFFF
##1A55B3	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F60B6

Deuteranopia (green-blind)

#0052B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1a55b3;
/* rgb */ color: rgb(26, 85, 179);
/* oklch */ color: oklch(46.9% 0.161 259.8);

Tailwind

colors: {
  custom: {
    50: '#7384ca',
    500: '#1a55b3',
    950: '#000000',
  },
}

SCSS

$custom: #1a55b3;
$custom-light: #7384ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1a55b3",
  "rgb": {
    "r": 26,
    "g": 85,
    "b": 179
  },
  "hsl": {
    "h": 216.863,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4695,
    "c": 0.16135,
    "h": 259.8
  },
  "luminance": 0.09971
}

Semantic roles & 50–950 ramp

primary

#1A55B3

secondary

#CCA15D

accent

#A937F1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1A55B3

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

Preview Lab → · Contrast checker → · Palette generator →