#1A318F#1A318F

#1A318F is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.157 H 267.0°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#1A318F
RGB	rgb(26, 49, 143)
HSL	hsl(228, 69%, 33%)
HSV	hsv(228, 82%, 56%)
CMYK	cmyk(81.8%, 65.7%, 0%, 43.9%)
CIE-LAB	lab(24.95, 27.77, -54.25)
CIE-LCH	lch(24.95, 60.95, 297.10°)
OKLab	oklab(36.38% -0.0081 -0.157)
OKLCH	oklch(36.38% 0.157 267)
XYZ	xyz(6.4805, 4.3986, 26.4887)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A318F #8F781A

analogous

#1A6B8F #1A318F #3D1A8F

triadic

#1A318F #8F1A31 #318F1A

tetradic

#1A318F #8F1A6B #8F781A #1A8F3D

square

#1A318F #8F1A6B #8F781A #1A8F3D

split-complementary

#1A318F #8F3D1A #6B8F1A

monochromatic

#070E27 #111F5B #1A318F #2343C3 #4664DD

Accessibility & contrast

On white

11.17

#1A318F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1A318F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A318F

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A318F	#FFFFFF	#000000	##FFFFFF
##1A318F	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004192

Deuteranopia (green-blind)

#00368D

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a318f;
/* rgb */ color: rgb(26, 49, 143);
/* oklch */ color: oklch(36.4% 0.157 267.0);

Tailwind

colors: {
  custom: {
    50: '#6c69b1',
    500: '#1a318f',
    950: '#000000',
  },
}

SCSS

$custom: #1a318f;
$custom-light: #6c69b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a318f",
  "rgb": {
    "r": 26,
    "g": 49,
    "b": 143
  },
  "hsl": {
    "h": 228.205,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36378,
    "c": 0.15726,
    "h": 267
  },
  "luminance": 0.04399
}

Semantic roles & 50–950 ramp

primary

#1A318F

secondary

#BFA746

accent

#C93CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1A318F

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

Preview Lab → · Contrast checker → · Palette generator →