#1E17B4#1E17B4

#1E17B4 is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 37.2% C 0.225 H 269.5°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#1E17B4
RGB	rgb(30, 23, 180)
HSL	hsl(243, 77%, 40%)
HSV	hsv(243, 87%, 71%)
CMYK	cmyk(83.3%, 87.2%, 0%, 29.4%)
CIE-LAB	lab(24.27, 54.98, -77.87)
CIE-LCH	lch(24.27, 95.33, 305.22°)
OKLab	oklab(37.16% -0.0021 -0.2253)
OKLCH	oklch(37.16% 0.225 269.5)
XYZ	xyz(9.0772, 4.1830, 43.5002)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E17B4 #ADB417

analogous

#175FB4 #1E17B4 #6C17B4

triadic

#1E17B4 #B41E17 #17B41E

tetradic

#1E17B4 #B4175F #ADB417 #17B46C

square

#1E17B4 #B4175F #ADB417 #17B46C

split-complementary

#1E17B4 #B46C17 #5FB417

monochromatic

#0C0947 #15107E #1E17B4 #2E25E3 #625BEA

Accessibility & contrast

On white

11.43

#1E17B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1E17B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E17B4

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E17B4	#FFFFFF	#000000	##FFFFFF
##1E17B4	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041B8

Deuteranopia (green-blind)

#0031B1

Tritanopia (blue-blind)

#004D6A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1e17b4;
/* rgb */ color: rgb(30, 23, 180);
/* oklch */ color: oklch(37.2% 0.225 269.5);

Tailwind

colors: {
  custom: {
    50: '#7a5bcc',
    500: '#1e17b4',
    950: '#000000',
  },
}

SCSS

$custom: #1e17b4;
$custom-light: #7a5bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#1e17b4",
  "rgb": {
    "r": 30,
    "g": 23,
    "b": 180
  },
  "hsl": {
    "h": 242.675,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37159,
    "c": 0.2253,
    "h": 269.5
  },
  "luminance": 0.04184
}

Semantic roles & 50–950 ramp

primary

#1E17B4

secondary

#C8CE59

accent

#F434EB

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0414

muted

#7C7982

Preview Lab

Preview with #1E17B4

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

Preview Lab → · Contrast checker → · Palette generator →