#1A347F#1A347F

#1A347F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.5% C 0.131 H 265.5°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#1A347F
RGB	rgb(26, 52, 127)
HSL	hsl(225, 66%, 30%)
HSV	hsv(225, 80%, 50%)
CMYK	cmyk(79.5%, 59.1%, 0%, 50.2%)
CIE-LAB	lab(24.35, 19.30, -45.25)
CIE-LCH	lch(24.35, 49.19, 293.10°)
OKLab	oklab(35.49% -0.0102 -0.1306)
OKLCH	oklch(35.49% 0.131 265.5)
XYZ	xyz(5.4834, 4.2073, 20.5977)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A347F #7F651A

analogous

#1A677F #1A347F #321A7F

triadic

#1A347F #7F1A34 #347F1A

tetradic

#1A347F #7F1A67 #7F651A #1A7F32

square

#1A347F #7F1A67 #7F651A #1A7F32

split-complementary

#1A347F #7F321A #677F1A

monochromatic

#050A19 #101F4C #1A347F #2449B2 #3C64D7

Accessibility & contrast

On white

11.40

#1A347F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1A347F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A347F

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A347F	#FFFFFF	#000000	##FFFFFF
##1A347F	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00357E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a347f;
/* rgb */ color: rgb(26, 52, 127);
/* oklch */ color: oklch(35.5% 0.131 265.5);

Tailwind

colors: {
  custom: {
    50: '#686ba5',
    500: '#1a347f',
    950: '#000000',
  },
}

SCSS

$custom: #1a347f;
$custom-light: #686ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a347f",
  "rgb": {
    "r": 26,
    "g": 52,
    "b": 127
  },
  "hsl": {
    "h": 224.554,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.3549,
    "c": 0.13101,
    "h": 265.5
  },
  "luminance": 0.04208
}

Semantic roles & 50–950 ramp

primary

#1A347F

secondary

#B39642

accent

#BD3FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A347F

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

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