#1E238F#1E238F

#1E238F is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.2% C 0.172 H 270.9°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#1E238F
RGB	rgb(30, 35, 143)
HSL	hsl(237, 65%, 34%)
HSV	hsv(237, 79%, 56%)
CMYK	cmyk(79%, 75.5%, 0%, 43.9%)
CIE-LAB	lab(21.80, 37.17, -59.42)
CIE-LCH	lch(21.80, 70.09, 302.03°)
OKLab	oklab(34.15% 0.0027 -0.1721)
OKLCH	oklch(34.15% 0.172 270.9)
XYZ	xyz(6.0927, 3.4606, 26.3281)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E238F #8F8A1E

analogous

#1E5C8F #1E238F #521E8F

triadic

#1E238F #8F1E23 #238F1E

tetradic

#1E238F #8F1E5C #8F8A1E #1E8F52

square

#1E238F #8F1E5C #8F8A1E #1E8F52

split-complementary

#1E238F #8F521E #5C8F1E

monochromatic

#090A2A #13175C #1E238F #292FC2 #4E54DA

Accessibility & contrast

On white

12.41

#1E238F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1E238F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E238F

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E238F	#FFFFFF	#000000	##FFFFFF
##1E238F	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A92

Deuteranopia (green-blind)

#002F8D

Tritanopia (blue-blind)

#004257

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1e238f;
/* rgb */ color: rgb(30, 35, 143);
/* oklch */ color: oklch(34.2% 0.172 270.9);

Tailwind

colors: {
  custom: {
    50: '#6f5fb1',
    500: '#1e238f',
    950: '#000000',
  },
}

SCSS

$custom: #1e238f;
$custom-light: #6f5fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1e238f",
  "rgb": {
    "r": 30,
    "g": 35,
    "b": 143
  },
  "hsl": {
    "h": 237.345,
    "s": 65.318,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34151,
    "c": 0.17209,
    "h": 270.9
  },
  "luminance": 0.03461
}

Semantic roles & 50–950 ramp

primary

#1E238F

secondary

#BCB74C

accent

#E140E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1E238F

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

Preview Lab → · Contrast checker → · Palette generator →