#1A257F#1A257F

#1A257F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.150 H 269.8°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#1A257F
RGB	rgb(26, 37, 127)
HSL	hsl(233, 66%, 30%)
HSV	hsv(233, 80%, 50%)
CMYK	cmyk(79.5%, 70.9%, 0%, 50.2%)
CIE-LAB	lab(20.34, 29.67, -51.80)
CIE-LCH	lch(20.34, 59.70, 299.80°)
OKLab	oklab(32.53% -0.0004 -0.15)
OKLCH	oklch(32.53% 0.15 269.8)
XYZ	xyz(4.9170, 3.0745, 20.4089)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A257F #7F741A

analogous

#1A587F #1A257F #411A7F

triadic

#1A257F #7F1A25 #257F1A

tetradic

#1A257F #7F1A58 #7F741A #1A7F41

square

#1A257F #7F1A58 #7F741A #1A7F41

split-complementary

#1A257F #7F411A #587F1A

monochromatic

#050719 #10164C #1A257F #2434B2 #3C4DD7

Accessibility & contrast

On white

13.00

#1A257F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1A257F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A257F

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A257F	#FFFFFF	#000000	##FFFFFF
##1A257F	1.00	13.00	1.62	13.00
#FFFFFF	13.00	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	13.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003682

Deuteranopia (green-blind)

#002C7D

Tritanopia (blue-blind)

#003E4F

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1a257f;
/* rgb */ color: rgb(26, 37, 127);
/* oklch */ color: oklch(32.5% 0.150 269.8);

Tailwind

colors: {
  custom: {
    50: '#6960a5',
    500: '#1a257f',
    950: '#000000',
  },
}

SCSS

$custom: #1a257f;
$custom-light: #6960a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a257f",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 127
  },
  "hsl": {
    "h": 233.465,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.32532,
    "c": 0.14996,
    "h": 269.8
  },
  "luminance": 0.03075
}

Semantic roles & 50–950 ramp

primary

#1A257F

secondary

#B3A742

accent

#D63FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1A257F

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

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