#1E338B#1E338B

#1E338B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.148 H 267.8°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#1E338B
RGB	rgb(30, 51, 139)
HSL	hsl(228, 64%, 33%)
HSV	hsv(228, 78%, 55%)
CMYK	cmyk(78.4%, 63.3%, 0%, 45.5%)
CIE-LAB	lab(25.28, 25.24, -51.22)
CIE-LCH	lch(25.28, 57.10, 296.24°)
OKLab	oklab(36.56% -0.0057 -0.1481)
OKLCH	oklch(36.56% 0.148 267.8)
XYZ	xyz(6.3778, 4.5070, 24.9549)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E338B #8B761E

analogous

#1E698B #1E338B #3F1E8B

triadic

#1E338B #8B1E33 #338B1E

tetradic

#1E338B #8B1E69 #8B761E #1E8B3F

square

#1E338B #8B1E69 #8B761E #1E8B3F

split-complementary

#1E338B #8B3F1E #698B1E

monochromatic

#080E26 #132159 #1E338B #2945BD #4B66D8

Accessibility & contrast

On white

11.04

#1E338B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1E338B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E338B

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E338B	#FFFFFF	#000000	##FFFFFF
##1E338B	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003789

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1e338b;
/* rgb */ color: rgb(30, 51, 139);
/* oklch */ color: oklch(36.6% 0.148 267.8);

Tailwind

colors: {
  custom: {
    50: '#6c6aae',
    500: '#1e338b',
    950: '#000000',
  },
}

SCSS

$custom: #1e338b;
$custom-light: #6c6aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1e338b",
  "rgb": {
    "r": 30,
    "g": 51,
    "b": 139
  },
  "hsl": {
    "h": 228.44,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.3656,
    "c": 0.14817,
    "h": 267.8
  },
  "luminance": 0.04508
}

Semantic roles & 50–950 ramp

primary

#1E338B

secondary

#BBA54A

accent

#C740E7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1E338B

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

Preview Lab → · Contrast checker → · Palette generator →