#1A309E#1A309E

#1A309E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.7% C 0.178 H 267.3°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#1A309E
RGB	rgb(26, 48, 158)
HSL	hsl(230, 72%, 36%)
HSV	hsv(230, 84%, 62%)
CMYK	cmyk(83.5%, 69.6%, 0%, 38%)
CIE-LAB	lab(26.16, 34.17, -61.47)
CIE-LCH	lch(26.16, 70.33, 299.07°)
OKLab	oklab(37.71% -0.0084 -0.1781)
OKLCH	oklch(37.71% 0.178 267.3)
XYZ	xyz(7.6524, 4.8012, 32.8645)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A309E #9E881A

analogous

#1A729E #1A309E #461A9E

triadic

#1A309E #9E1A30 #309E1A

tetradic

#1A309E #9E1A72 #9E881A #1A9E46

square

#1A309E #9E1A72 #9E881A #1A9E46

split-complementary

#1A309E #9E461A #729E1A

monochromatic

#091035 #112069 #1A309E #2340D3 #5069E2

Accessibility & contrast

On white

10.71

#1A309E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1A309E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A309E

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A309E	#FFFFFF	#000000	##FFFFFF
##1A309E	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A1

Deuteranopia (green-blind)

#00389C

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a309e;
/* rgb */ color: rgb(26, 48, 158);
/* oklch */ color: oklch(37.7% 0.178 267.3);

Tailwind

colors: {
  custom: {
    50: '#7068bc',
    500: '#1a309e',
    950: '#000000',
  },
}

SCSS

$custom: #1a309e;
$custom-light: #7068bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1a309e",
  "rgb": {
    "r": 26,
    "g": 48,
    "b": 158
  },
  "hsl": {
    "h": 230,
    "s": 71.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.3771,
    "c": 0.17832,
    "h": 267.3
  },
  "luminance": 0.04802
}

Semantic roles & 50–950 ramp

primary

#1A309E

secondary

#C5B14F

accent

#D039EE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1A309E

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

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