#1A3C8B#1A3C8B

#1A3C8B is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.138 H 263.6°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#1A3C8B
RGB	rgb(26, 60, 139)
HSL	hsl(222, 68%, 32%)
HSV	hsv(222, 81%, 55%)
CMYK	cmyk(81.3%, 56.8%, 0%, 45.5%)
CIE-LAB	lab(27.61, 18.56, -47.43)
CIE-LCH	lch(27.61, 50.93, 291.38°)
OKLab	oklab(38.26% -0.0153 -0.1369)
OKLCH	oklch(38.26% 0.138 263.6)
XYZ	xyz(6.7004, 5.3146, 25.0938)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3C8B #8B691A

analogous

#1A758B #1A3C8B #311A8B

triadic

#1A3C8B #8B1A3C #3C8B1A

tetradic

#1A3C8B #8B1A75 #8B691A #1A8B31

square

#1A3C8B #8B1A75 #8B691A #1A8B31

split-complementary

#1A3C8B #8B311A #758B1A

monochromatic

#070F24 #102657 #1A3C8B #2452BF #4371DC

Accessibility & contrast

On white

10.18

#1A3C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1A3C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3C8B

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3C8B	#FFFFFF	#000000	##FFFFFF
##1A3C8B	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a3c8b;
/* rgb */ color: rgb(26, 60, 139);
/* oklch */ color: oklch(38.3% 0.138 263.6);

Tailwind

colors: {
  custom: {
    50: '#6a71ae',
    500: '#1a3c8b',
    950: '#000000',
  },
}

SCSS

$custom: #1a3c8b;
$custom-light: #6a71ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3c8b",
  "rgb": {
    "r": 26,
    "g": 60,
    "b": 139
  },
  "hsl": {
    "h": 221.947,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.38259,
    "c": 0.13772,
    "h": 263.6
  },
  "luminance": 0.05315
}

Semantic roles & 50–950 ramp

primary

#1A3C8B

secondary

#BD9944

accent

#B73CEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A3C8B

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

Preview Lab → · Contrast checker → · Palette generator →