#1A338F#1A338F

#1A338F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.155 H 266.6°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#1A338F
RGB	rgb(26, 51, 143)
HSL	hsl(227, 69%, 33%)
HSV	hsv(227, 82%, 56%)
CMYK	cmyk(81.8%, 64.3%, 0%, 43.9%)
CIE-LAB	lab(25.47, 26.40, -53.39)
CIE-LCH	lch(25.47, 59.56, 296.31°)
OKLab	oklab(36.77% -0.0093 -0.1545)
OKLCH	oklch(36.77% 0.155 266.6)
XYZ	xyz(6.5660, 4.5697, 26.5173)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A338F #8F761A

analogous

#1A6E8F #1A338F #3B1A8F

triadic

#1A338F #8F1A33 #338F1A

tetradic

#1A338F #8F1A6E #8F761A #1A8F3B

square

#1A338F #8F1A6E #8F761A #1A8F3B

split-complementary

#1A338F #8F3B1A #6E8F1A

monochromatic

#070E27 #11215B #1A338F #2345C3 #4666DD

Accessibility & contrast

On white

10.97

#1A338F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1A338F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A338F

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A338F	#FFFFFF	#000000	##FFFFFF
##1A338F	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#00378D

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a338f;
/* rgb */ color: rgb(26, 51, 143);
/* oklch */ color: oklch(36.8% 0.155 266.6);

Tailwind

colors: {
  custom: {
    50: '#6c6ab1',
    500: '#1a338f',
    950: '#000000',
  },
}

SCSS

$custom: #1a338f;
$custom-light: #6c6ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a338f",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 143
  },
  "hsl": {
    "h": 227.179,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36765,
    "c": 0.15479,
    "h": 266.6
  },
  "luminance": 0.0457
}

Semantic roles & 50–950 ramp

primary

#1A338F

secondary

#BFA546

accent

#C63CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1A338F

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

Preview Lab → · Contrast checker → · Palette generator →