#1A2178#1A2178

#1A2178 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.1% C 0.145 H 271.0°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#1A2178
RGB	rgb(26, 33, 120)
HSL	hsl(236, 64%, 29%)
HSV	hsv(236, 78%, 47%)
CMYK	cmyk(78.3%, 72.5%, 0%, 52.9%)
CIE-LAB	lab(18.64, 29.66, -50.14)
CIE-LCH	lch(18.64, 58.26, 300.61°)
OKLab	oklab(31.08% 0.0026 -0.1451)
OKLCH	oklch(31.08% 0.145 271)
XYZ	xyz(4.3589, 2.6629, 18.0499)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2178 #78711A

analogous

#1A5078 #1A2178 #421A78

triadic

#1A2178 #781A21 #21781A

tetradic

#1A2178 #781A50 #78711A #1A7842

square

#1A2178 #781A50 #78711A #1A7842

split-complementary

#1A2178 #78421A #50781A

monochromatic

#050719 #0F1346 #1A2178 #252FAA #3844D4

Accessibility & contrast

On white

13.70

#1A2178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1A2178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2178

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2178	#FFFFFF	#000000	##FFFFFF
##1A2178	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327B

Deuteranopia (green-blind)

#002976

Tritanopia (blue-blind)

#00394A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a2178;
/* rgb */ color: rgb(26, 33, 120);
/* oklch */ color: oklch(31.1% 0.145 271.0);

Tailwind

colors: {
  custom: {
    50: '#685ca0',
    500: '#1a2178',
    950: '#000000',
  },
}

SCSS

$custom: #1a2178;
$custom-light: #685ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2178",
  "rgb": {
    "r": 26,
    "g": 33,
    "b": 120
  },
  "hsl": {
    "h": 235.532,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31083,
    "c": 0.14514,
    "h": 271
  },
  "luminance": 0.02663
}

Semantic roles & 50–950 ramp

primary

#1A2178

secondary

#ACA541

accent

#DB40E7

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #1A2178

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

Preview Lab → · Contrast checker → · Palette generator →