#1E309B#1E309B

#1E309B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.173 H 268.4°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#1E309B
RGB	rgb(30, 48, 155)
HSL	hsl(231, 68%, 36%)
HSV	hsv(231, 81%, 61%)
CMYK	cmyk(80.6%, 69%, 0%, 39.2%)
CIE-LAB	lab(26.03, 33.37, -59.85)
CIE-LCH	lch(26.03, 68.53, 299.14°)
OKLab	oklab(37.57% -0.0047 -0.1733)
OKLCH	oklch(37.57% 0.173 268.4)
XYZ	xyz(7.5067, 4.7556, 31.5263)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E309B #9B891E

analogous

#1E6F9B #1E309B #4B1E9B

triadic

#1E309B #9B1E30 #309B1E

tetradic

#1E309B #9B1E6F #9B891E #1E9B4B

square

#1E309B #9B1E6F #9B891E #1E9B4B

split-complementary

#1E309B #9B4B1E #6F9B1E

monochromatic

#0A1034 #142068 #1E309B #2840CE #5569DE

Accessibility & contrast

On white

10.76

#1E309B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1E309B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E309B

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E309B	#FFFFFF	#000000	##FFFFFF
##1E309B	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#003899

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1e309b;
/* rgb */ color: rgb(30, 48, 155);
/* oklch */ color: oklch(37.6% 0.173 268.4);

Tailwind

colors: {
  custom: {
    50: '#7168ba',
    500: '#1e309b',
    950: '#000000',
  },
}

SCSS

$custom: #1e309b;
$custom-light: #7168ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1e309b",
  "rgb": {
    "r": 30,
    "g": 48,
    "b": 155
  },
  "hsl": {
    "h": 231.36,
    "s": 67.568,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37568,
    "c": 0.1734,
    "h": 268.4
  },
  "luminance": 0.04756
}

Semantic roles & 50–950 ramp

primary

#1E309B

secondary

#C2B253

accent

#D23DEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1E309B

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

Preview Lab → · Contrast checker → · Palette generator →