#1A2F83#1A2F83

#1A2F83 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.143 H 267.3°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#1A2F83
RGB	rgb(26, 47, 131)
HSL	hsl(228, 67%, 31%)
HSV	hsv(228, 80%, 51%)
CMYK	cmyk(80.2%, 64.1%, 0%, 48.6%)
CIE-LAB	lab(23.31, 24.41, -49.46)
CIE-LCH	lch(23.31, 55.16, 296.27°)
OKLab	oklab(34.83% -0.0066 -0.143)
OKLCH	oklch(34.83% 0.143 267.3)
XYZ	xyz(5.5378, 3.8907, 21.9274)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2F83 #836E1A

analogous

#1A6383 #1A2F83 #391A83

triadic

#1A2F83 #831A2F #2F831A

tetradic

#1A2F83 #831A63 #836E1A #1A8339

square

#1A2F83 #831A63 #836E1A #1A8339

split-complementary

#1A2F83 #83391A #63831A

monochromatic

#060A1D #101D50 #1A2F83 #2441B6 #3F5DD9

Accessibility & contrast

On white

11.81

#1A2F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1A2F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2F83

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2F83	#FFFFFF	#000000	##FFFFFF
##1A2F83	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1a2f83;
/* rgb */ color: rgb(26, 47, 131);
/* oklch */ color: oklch(34.8% 0.143 267.3);

Tailwind

colors: {
  custom: {
    50: '#6967a8',
    500: '#1a2f83',
    950: '#000000',
  },
}

SCSS

$custom: #1a2f83;
$custom-light: #6967a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2f83",
  "rgb": {
    "r": 26,
    "g": 47,
    "b": 131
  },
  "hsl": {
    "h": 228,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34825,
    "c": 0.14318,
    "h": 267.3
  },
  "luminance": 0.03891
}

Semantic roles & 50–950 ramp

primary

#1A2F83

secondary

#B79F42

accent

#C73EEA

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1A2F83

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

Preview Lab → · Contrast checker → · Palette generator →