#1A2378#1A2378

#1A2378 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.4% C 0.143 H 270.6°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#1A2378
RGB	rgb(26, 35, 120)
HSL	hsl(234, 64%, 29%)
HSV	hsv(234, 78%, 47%)
CMYK	cmyk(78.3%, 70.8%, 0%, 52.9%)
CIE-LAB	lab(19.13, 28.33, -49.34)
CIE-LCH	lch(19.13, 56.89, 299.87°)
OKLab	oklab(31.44% 0.0014 -0.1428)
OKLCH	oklch(31.44% 0.143 270.6)
XYZ	xyz(4.4160, 2.7773, 18.0690)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2378 #786F1A

analogous

#1A5278 #1A2378 #401A78

triadic

#1A2378 #781A23 #23781A

tetradic

#1A2378 #781A52 #786F1A #1A7840

square

#1A2378 #781A52 #786F1A #1A7840

split-complementary

#1A2378 #78401A #52781A

monochromatic

#050719 #0F1446 #1A2378 #2532AA #3847D4

Accessibility & contrast

On white

13.50

#1A2378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1A2378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2378

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2378	#FFFFFF	#000000	##FFFFFF
##1A2378	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#002A76

Tritanopia (blue-blind)

#003A4A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1a2378;
/* rgb */ color: rgb(26, 35, 120);
/* oklch */ color: oklch(31.4% 0.143 270.6);

Tailwind

colors: {
  custom: {
    50: '#675ea0',
    500: '#1a2378',
    950: '#000000',
  },
}

SCSS

$custom: #1a2378;
$custom-light: #675ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2378",
  "rgb": {
    "r": 26,
    "g": 35,
    "b": 120
  },
  "hsl": {
    "h": 234.255,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31436,
    "c": 0.14278,
    "h": 270.6
  },
  "luminance": 0.02778
}

Semantic roles & 50–950 ramp

primary

#1A2378

secondary

#ACA241

accent

#D740E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #1A2378

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

Preview Lab → · Contrast checker → · Palette generator →