#1E30B3#1E30B3

#1E30B3 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.1% C 0.204 H 268.0°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#1E30B3
RGB	rgb(30, 48, 179)
HSL	hsl(233, 71%, 41%)
HSV	hsv(233, 83%, 70%)
CMYK	cmyk(83.2%, 73.2%, 0%, 29.8%)
CIE-LAB	lab(28.49, 42.08, -70.27)
CIE-LCH	lch(28.49, 81.90, 300.92°)
OKLab	oklab(40.09% -0.0071 -0.2037)
OKLCH	oklch(40.09% 0.204 268)
XYZ	xyz(9.7262, 5.6434, 43.2158)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E30B3 #B3A11E

analogous

#1E7AB3 #1E30B3 #561EB3

triadic

#1E30B3 #B31E30 #30B31E

tetradic

#1E30B3 #B31E7A #B3A11E #1EB356

square

#1E30B3 #B31E7A #B3A11E #1EB356

split-complementary

#1E30B3 #B3561E #7AB31E

monochromatic

#0C144A #15227F #1E30B3 #3246DD #6675E5

Accessibility & contrast

On white

9.86

#1E30B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1E30B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E30B3

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E30B3	#FFFFFF	#000000	##FFFFFF
##1E30B3	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB7

Deuteranopia (green-blind)

#003CB1

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1e30b3;
/* rgb */ color: rgb(30, 48, 179);
/* oklch */ color: oklch(40.1% 0.204 268.0);

Tailwind

colors: {
  custom: {
    50: '#7769cb',
    500: '#1e30b3',
    950: '#000000',
  },
}

SCSS

$custom: #1e30b3;
$custom-light: #7769cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1e30b3",
  "rgb": {
    "r": 30,
    "g": 48,
    "b": 179
  },
  "hsl": {
    "h": 232.752,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40087,
    "c": 0.20379,
    "h": 268
  },
  "luminance": 0.05645
}

Semantic roles & 50–950 ramp

primary

#1E30B3

secondary

#CBBE62

accent

#D83AEE

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #1E30B3

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

Preview Lab → · Contrast checker → · Palette generator →