#1E51AC#1E51AC

#1E51AC is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.6% C 0.156 H 261.0°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#1E51AC
RGB	rgb(30, 81, 172)
HSL	hsl(218, 70%, 40%)
HSV	hsv(218, 83%, 67%)
CMYK	cmyk(82.6%, 52.9%, 0%, 32.5%)
CIE-LAB	lab(36.25, 17.87, -53.41)
CIE-LCH	lch(36.25, 56.32, 288.50°)
OKLab	oklab(45.64% -0.0245 -0.154)
OKLCH	oklch(45.64% 0.156 261)
XYZ	xyz(10.9215, 9.1381, 40.2099)
Luminance	0.0914 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E51AC #AC791E

analogous

#1E98AC #1E51AC #321EAC

triadic

#1E51AC #AC1E51 #51AC1E

tetradic

#1E51AC #AC1E98 #AC791E #1EAC32

square

#1E51AC #AC1E98 #AC791E #1EAC32

split-complementary

#1E51AC #AC321E #98AC1E

monochromatic

#0C2044 #153878 #1E51AC #2D6BDA #6190E3

Accessibility & contrast

On white

7.43

#1E51AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#1E51AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E51AC

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E51AC	#FFFFFF	#000000	##FFFFFF
##1E51AC	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D5CAF

Deuteranopia (green-blind)

#004FAA

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1e51ac;
/* rgb */ color: rgb(30, 81, 172);
/* oklch */ color: oklch(45.6% 0.156 261.0);

Tailwind

colors: {
  custom: {
    50: '#7381c5',
    500: '#1e51ac',
    950: '#000000',
  },
}

SCSS

$custom: #1e51ac;
$custom-light: #7381c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1e51ac",
  "rgb": {
    "r": 30,
    "g": 81,
    "b": 172
  },
  "hsl": {
    "h": 218.451,
    "s": 70.297,
    "l": 39.608
  },
  "oklch": {
    "l": 0.45644,
    "c": 0.1559,
    "h": 261
  },
  "luminance": 0.09139
}

Semantic roles & 50–950 ramp

primary

#1E51AC

secondary

#C8A25E

accent

#AD3BED

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1E51AC

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

Preview Lab → · Contrast checker → · Palette generator →