#1E55B3#1E55B3

#1E55B3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.1% C 0.160 H 260.5°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#1E55B3
RGB	rgb(30, 85, 179)
HSL	hsl(218, 71%, 41%)
HSV	hsv(218, 83%, 70%)
CMYK	cmyk(83.2%, 52.5%, 0%, 29.8%)
CIE-LAB	lab(37.89, 17.98, -54.89)
CIE-LCH	lch(37.89, 57.76, 288.13°)
OKLab	oklab(47.06% -0.0265 -0.1583)
OKLCH	oklch(47.06% 0.16 260.5)
XYZ	xyz(11.9176, 10.0262, 43.9462)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E55B3 #B37C1E

analogous

#1E9FB3 #1E55B3 #311EB3

triadic

#1E55B3 #B31E55 #55B31E

tetradic

#1E55B3 #B31E9F #B37C1E #1EB331

square

#1E55B3 #B31E9F #B37C1E #1EB331

split-complementary

#1E55B3 #B3311E #9FB31E

monochromatic

#0C234A #153C7F #1E55B3 #3271DD #6695E5

Accessibility & contrast

On white

6.99

#1E55B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#1E55B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1E55B3

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E55B3	#FFFFFF	#000000	##FFFFFF
##1E55B3	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1060B6

Deuteranopia (green-blind)

#0053B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1e55b3;
/* rgb */ color: rgb(30, 85, 179);
/* oklch */ color: oklch(47.1% 0.160 260.5);

Tailwind

colors: {
  custom: {
    50: '#7484ca',
    500: '#1e55b3',
    950: '#000000',
  },
}

SCSS

$custom: #1e55b3;
$custom-light: #7484ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1e55b3",
  "rgb": {
    "r": 30,
    "g": 85,
    "b": 179
  },
  "hsl": {
    "h": 217.852,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.47056,
    "c": 0.16046,
    "h": 260.5
  },
  "luminance": 0.10028
}

Semantic roles & 50–950 ramp

primary

#1E55B3

secondary

#CBA462

accent

#AB3AEE

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1E55B3

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

Preview Lab → · Contrast checker → · Palette generator →