#1E23BB#1E23BB

#1E23BB is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.2% C 0.225 H 268.7°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#1E23BB
RGB	rgb(30, 35, 187)
HSL	hsl(238, 72%, 43%)
HSV	hsv(238, 84%, 73%)
CMYK	cmyk(84%, 81.3%, 0%, 26.7%)
CIE-LAB	lab(26.92, 51.86, -77.63)
CIE-LCH	lch(26.92, 93.36, 303.74°)
OKLab	oklab(39.24% -0.0052 -0.2248)
OKLCH	oklch(39.24% 0.225 268.7)
XYZ	xyz(10.1030, 5.0647, 47.4492)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E23BB #BBB61E

analogous

#1E72BB #1E23BB #671EBB

triadic

#1E23BB #BB1E23 #23BB1E

tetradic

#1E23BB #BB1E72 #BBB61E #1EBB67

square

#1E23BB #BB1E72 #BBB61E #1EBB67

split-complementary

#1E23BB #BB671E #72BB1E

monochromatic

#0D0F52 #161986 #1E23BB #373DDF #6C70E7

Accessibility & contrast

On white

10.43

#1E23BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1E23BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E23BB

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E23BB	#FFFFFF	#000000	##FFFFFF
##1E23BB	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#0037B8

Tritanopia (blue-blind)

#005470

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1e23bb;
/* rgb */ color: rgb(30, 35, 187);
/* oklch */ color: oklch(39.2% 0.225 268.7);

Tailwind

colors: {
  custom: {
    50: '#7a62d1',
    500: '#1e23bb',
    950: '#000000',
  },
}

SCSS

$custom: #1e23bb;
$custom-light: #7a62d1;
$custom-dark: #000000;

JSON

{
  "hex": "#1e23bb",
  "rgb": {
    "r": 30,
    "g": 35,
    "b": 187
  },
  "hsl": {
    "h": 238.089,
    "s": 72.35,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39238,
    "c": 0.22491,
    "h": 268.7
  },
  "luminance": 0.05066
}

Semantic roles & 50–950 ramp

primary

#1E23BB

secondary

#CDCA67

accent

#E939EF

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0B0514

muted

#7C7A83

Preview Lab

Preview with #1E23BB

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

Preview Lab → · Contrast checker → · Palette generator →