#1A307F#1A307F

#1A307F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.6% C 0.136 H 266.9°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#1A307F
RGB	rgb(26, 48, 127)
HSL	hsl(227, 66%, 30%)
HSV	hsv(227, 80%, 50%)
CMYK	cmyk(79.5%, 62.2%, 0%, 50.2%)
CIE-LAB	lab(23.22, 22.12, -47.08)
CIE-LCH	lch(23.22, 52.02, 295.16°)
OKLab	oklab(34.65% -0.0073 -0.136)
OKLCH	oklch(34.65% 0.136 266.9)
XYZ	xyz(5.3124, 3.8652, 20.5406)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A307F #7F691A

analogous

#1A627F #1A307F #371A7F

triadic

#1A307F #7F1A30 #307F1A

tetradic

#1A307F #7F1A62 #7F691A #1A7F37

square

#1A307F #7F1A62 #7F691A #1A7F37

split-complementary

#1A307F #7F371A #627F1A

monochromatic

#050A19 #101D4C #1A307F #2443B2 #3C5ED7

Accessibility & contrast

On white

11.84

#1A307F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1A307F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A307F

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A307F	#FFFFFF	#000000	##FFFFFF
##1A307F	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C82

Deuteranopia (green-blind)

#00337D

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1a307f;
/* rgb */ color: rgb(26, 48, 127);
/* oklch */ color: oklch(34.6% 0.136 266.9);

Tailwind

colors: {
  custom: {
    50: '#6868a5',
    500: '#1a307f',
    950: '#000000',
  },
}

SCSS

$custom: #1a307f;
$custom-light: #6868a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a307f",
  "rgb": {
    "r": 26,
    "g": 48,
    "b": 127
  },
  "hsl": {
    "h": 226.931,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.3465,
    "c": 0.13625,
    "h": 266.9
  },
  "luminance": 0.03866
}

Semantic roles & 50–950 ramp

primary

#1A307F

secondary

#B39A42

accent

#C43FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A307F

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

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