#1A308F#1A308F

#1A308F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.158 H 267.3°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#1A308F
RGB	rgb(26, 48, 143)
HSL	hsl(229, 69%, 33%)
HSV	hsv(229, 82%, 56%)
CMYK	cmyk(81.8%, 66.4%, 0%, 43.9%)
CIE-LAB	lab(24.69, 28.44, -54.68)
CIE-LCH	lch(24.69, 61.63, 297.48°)
OKLab	oklab(36.19% -0.0076 -0.1583)
OKLCH	oklch(36.19% 0.158 267.3)
XYZ	xyz(6.4392, 4.3159, 26.4750)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A308F #8F791A

analogous

#1A6A8F #1A308F #3E1A8F

triadic

#1A308F #8F1A30 #308F1A

tetradic

#1A308F #8F1A6A #8F791A #1A8F3E

square

#1A308F #8F1A6A #8F791A #1A8F3E

split-complementary

#1A308F #8F3E1A #6A8F1A

monochromatic

#070D27 #111F5B #1A308F #2341C3 #4662DD

Accessibility & contrast

On white

11.27

#1A308F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1A308F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A308F

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A308F	#FFFFFF	#000000	##FFFFFF
##1A308F	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004092

Deuteranopia (green-blind)

#00358D

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a308f;
/* rgb */ color: rgb(26, 48, 143);
/* oklch */ color: oklch(36.2% 0.158 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c68b1',
    500: '#1a308f',
    950: '#000000',
  },
}

SCSS

$custom: #1a308f;
$custom-light: #6c68b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a308f",
  "rgb": {
    "r": 26,
    "g": 48,
    "b": 143
  },
  "hsl": {
    "h": 228.718,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36188,
    "c": 0.15847,
    "h": 267.3
  },
  "luminance": 0.04317
}

Semantic roles & 50–950 ramp

primary

#1A308F

secondary

#BFA846

accent

#CB3CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1A308F

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

Preview Lab → · Contrast checker → · Palette generator →