#1A257A#1A257A

#1A257A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.143 H 270.0°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#1A257A
RGB	rgb(26, 37, 122)
HSL	hsl(233, 65%, 29%)
HSV	hsv(233, 79%, 48%)
CMYK	cmyk(78.7%, 69.7%, 0%, 52.2%)
CIE-LAB	lab(19.83, 27.75, -49.46)
CIE-LCH	lch(19.83, 56.72, 299.30°)
OKLab	oklab(32.01% 0.0001 -0.1431)
OKLCH	oklch(32.01% 0.143 270)
XYZ	xyz(4.5992, 2.9474, 18.7351)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A257A #7A6F1A

analogous

#1A557A #1A257A #3F1A7A

triadic

#1A257A #7A1A25 #257A1A

tetradic

#1A257A #7A1A55 #7A6F1A #1A7A3F

square

#1A257A #7A1A55 #7A6F1A #1A7A3F

split-complementary

#1A257A #7A3F1A #557A1A

monochromatic

#050819 #0F1648 #1A257A #2534AC #394BD5

Accessibility & contrast

On white

13.21

#1A257A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1A257A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A257A

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A257A	#FFFFFF	#000000	##FFFFFF
##1A257A	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357D

Deuteranopia (green-blind)

#002B78

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1a257a;
/* rgb */ color: rgb(26, 37, 122);
/* oklch */ color: oklch(32.0% 0.143 270.0);

Tailwind

colors: {
  custom: {
    50: '#685fa1',
    500: '#1a257a',
    950: '#000000',
  },
}

SCSS

$custom: #1a257a;
$custom-light: #685fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a257a",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 122
  },
  "hsl": {
    "h": 233.125,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32009,
    "c": 0.14312,
    "h": 270
  },
  "luminance": 0.02948
}

Semantic roles & 50–950 ramp

primary

#1A257A

secondary

#AEA241

accent

#D540E8

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1A257A

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

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