#1A337C#1A337C

#1A337C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.128 H 265.7°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#1A337C
RGB	rgb(26, 51, 124)
HSL	hsl(225, 65%, 29%)
HSV	hsv(225, 79%, 49%)
CMYK	cmyk(79%, 58.9%, 0%, 51.4%)
CIE-LAB	lab(23.81, 18.79, -44.23)
CIE-LCH	lch(23.81, 48.05, 293.01°)
OKLab	oklab(35.01% -0.0096 -0.1276)
OKLCH	oklch(35.01% 0.128 265.7)
XYZ	xyz(5.2466, 4.0419, 19.5685)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A337C #7C631A

analogous

#1A647C #1A337C #321A7C

triadic

#1A337C #7C1A33 #337C1A

tetradic

#1A337C #7C1A64 #7C631A #1A7C32

square

#1A337C #7C1A64 #7C631A #1A7C32

split-complementary

#1A337C #7C321A #647C1A

monochromatic

#050A19 #0F1E49 #1A337C #2548AF #3B62D6

Accessibility & contrast

On white

11.61

#1A337C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1A337C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A337C

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A337C	#FFFFFF	#000000	##FFFFFF
##1A337C	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7E

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a337c;
/* rgb */ color: rgb(26, 51, 124);
/* oklch */ color: oklch(35.0% 0.128 265.7);

Tailwind

colors: {
  custom: {
    50: '#676aa3',
    500: '#1a337c',
    950: '#000000',
  },
}

SCSS

$custom: #1a337c;
$custom-light: #676aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a337c",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 124
  },
  "hsl": {
    "h": 224.694,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3501,
    "c": 0.12798,
    "h": 265.7
  },
  "luminance": 0.04043
}

Semantic roles & 50–950 ramp

primary

#1A337C

secondary

#B09442

accent

#BD40E8

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A337C

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

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