#1E23B3#1E23B3

#1E23B3 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.3% C 0.216 H 269.0°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#1E23B3
RGB	rgb(30, 35, 179)
HSL	hsl(238, 71%, 41%)
HSV	hsv(238, 83%, 70%)
CMYK	cmyk(83.2%, 80.4%, 0%, 29.8%)
CIE-LAB	lab(25.96, 49.31, -74.47)
CIE-LCH	lch(25.96, 89.32, 303.51°)
OKLab	oklab(38.29% -0.0037 -0.2157)
OKLCH	oklch(38.29% 0.216 269)
XYZ	xyz(9.2704, 4.7316, 43.0638)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E23B3 #B3AE1E

analogous

#1E6DB3 #1E23B3 #641EB3

triadic

#1E23B3 #B31E23 #23B31E

tetradic

#1E23B3 #B31E6D #B3AE1E #1EB364

square

#1E23B3 #B31E6D #B3AE1E #1EB364

split-complementary

#1E23B3 #B3641E #6DB31E

monochromatic

#0C0F4A #15197F #1E23B3 #3237DD #666AE5

Accessibility & contrast

On white

10.79

#1E23B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1E23B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E23B3

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E23B3	#FFFFFF	#000000	##FFFFFF
##1E23B3	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B7

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#00506C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1e23b3;
/* rgb */ color: rgb(30, 35, 179);
/* oklch */ color: oklch(38.3% 0.216 269.0);

Tailwind

colors: {
  custom: {
    50: '#7861cb',
    500: '#1e23b3',
    950: '#000000',
  },
}

SCSS

$custom: #1e23b3;
$custom-light: #7861cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1e23b3",
  "rgb": {
    "r": 30,
    "g": 35,
    "b": 179
  },
  "hsl": {
    "h": 237.987,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.38291,
    "c": 0.21573,
    "h": 269
  },
  "luminance": 0.04733
}

Semantic roles & 50–950 ramp

primary

#1E23B3

secondary

#CBC762

accent

#E83AEE

background

#F8F5FC

surface

#EFEAF9

border

#CAC6D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #1E23B3

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

Preview Lab → · Contrast checker → · Palette generator →