#1A3A8E#1A3A8E

#1A3A8E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.1% C 0.145 H 264.5°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A8E
RGB	rgb(26, 58, 142)
HSL	hsl(223, 69%, 33%)
HSV	hsv(223, 82%, 56%)
CMYK	cmyk(81.7%, 59.2%, 0%, 44.3%)
CIE-LAB	lab(27.29, 21.17, -49.80)
CIE-LCH	lch(27.29, 54.12, 293.03°)
OKLab	oklab(38.09% -0.0137 -0.1439)
OKLCH	oklch(38.09% 0.145 264.5)
XYZ	xyz(6.8198, 5.1979, 26.2298)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A8E #8E6E1A

analogous

#1A748E #1A3A8E #341A8E

triadic

#1A3A8E #8E1A3A #3A8E1A

tetradic

#1A3A8E #8E1A74 #8E6E1A #1A8E34

square

#1A3A8E #8E1A74 #8E6E1A #1A8E34

split-complementary

#1A3A8E #8E341A #748E1A

monochromatic

#071027 #11255A #1A3A8E #234FC2 #456FDD

Accessibility & contrast

On white

10.30

#1A3A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1A3A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A8E

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A8E	#FFFFFF	#000000	##FFFFFF
##1A3A8E	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#003B8C

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1a3a8e;
/* rgb */ color: rgb(26, 58, 142);
/* oklch */ color: oklch(38.1% 0.145 264.5);

Tailwind

colors: {
  custom: {
    50: '#6b6fb0',
    500: '#1a3a8e',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a8e;
$custom-light: #6b6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a8e",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 142
  },
  "hsl": {
    "h": 223.448,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38094,
    "c": 0.14453,
    "h": 264.5
  },
  "luminance": 0.05199
}

Semantic roles & 50–950 ramp

primary

#1A3A8E

secondary

#BE9D45

accent

#BB3CEC

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1A3A8E

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

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