#1E4583#1E4583

#1E4583 is a dark, moderate blue. Relative luminance 0.062; OKLCH L 39.8% C 0.113 H 259.4°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#1E4583
RGB	rgb(30, 69, 131)
HSL	hsl(217, 63%, 32%)
HSV	hsv(217, 77%, 51%)
CMYK	cmyk(77.1%, 47.3%, 0%, 48.6%)
CIE-LAB	lab(29.84, 9.57, -38.87)
CIE-LCH	lch(29.84, 40.03, 283.83°)
OKLab	oklab(39.81% -0.0209 -0.1114)
OKLCH	oklch(39.81% 0.113 259.4)
XYZ	xyz(6.7588, 6.1702, 22.3031)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E4583 #835C1E

analogous

#1E7883 #1E4583 #2A1E83

triadic

#1E4583 #831E45 #45831E

tetradic

#1E4583 #831E78 #835C1E #1E832A

square

#1E4583 #831E78 #835C1E #1E832A

split-complementary

#1E4583 #832A1E #78831E

monochromatic

#07111F #132B51 #1E4583 #295FB5 #477ED5

Accessibility & contrast

On white

9.40

#1E4583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1E4583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E4583

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E4583	#FFFFFF	#000000	##FFFFFF
##1E4583	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254B85

Deuteranopia (green-blind)

#0E4282

Tritanopia (blue-blind)

#00545D

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1e4583;
/* rgb */ color: rgb(30, 69, 131);
/* oklch */ color: oklch(39.8% 0.113 259.4);

Tailwind

colors: {
  custom: {
    50: '#6978a7',
    500: '#1e4583',
    950: '#000000',
  },
}

SCSS

$custom: #1e4583;
$custom-light: #6978a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1e4583",
  "rgb": {
    "r": 30,
    "g": 69,
    "b": 131
  },
  "hsl": {
    "h": 216.832,
    "s": 62.733,
    "l": 31.569
  },
  "oklch": {
    "l": 0.39812,
    "c": 0.11337,
    "h": 259.4
  },
  "luminance": 0.06171
}

Semantic roles & 50–950 ramp

primary

#1E4583

secondary

#B68B47

accent

#A742E6

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1E4583

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

Preview Lab → · Contrast checker → · Palette generator →