#1A257C#1A257C

#1A257C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.2% C 0.146 H 269.9°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#1A257C
RGB	rgb(26, 37, 124)
HSL	hsl(233, 65%, 29%)
HSV	hsv(233, 79%, 49%)
CMYK	cmyk(79%, 70.2%, 0%, 51.4%)
CIE-LAB	lab(20.03, 28.52, -50.40)
CIE-LCH	lch(20.03, 57.91, 299.50°)
OKLab	oklab(32.22% -0.0001 -0.1459)
OKLCH	oklch(32.22% 0.146 269.9)
XYZ	xyz(4.7244, 2.9975, 19.3945)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A257C #7C711A

analogous

#1A567C #1A257C #401A7C

triadic

#1A257C #7C1A25 #257C1A

tetradic

#1A257C #7C1A56 #7C711A #1A7C40

square

#1A257C #7C1A56 #7C711A #1A7C40

split-complementary

#1A257C #7C401A #567C1A

monochromatic

#050819 #0F1649 #1A257C #2534AF #3B4CD6

Accessibility & contrast

On white

13.13

#1A257C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1A257C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A257C

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A257C	#FFFFFF	#000000	##FFFFFF
##1A257C	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002C7A

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1a257c;
/* rgb */ color: rgb(26, 37, 124);
/* oklch */ color: oklch(32.2% 0.146 269.9);

Tailwind

colors: {
  custom: {
    50: '#685fa3',
    500: '#1a257c',
    950: '#000000',
  },
}

SCSS

$custom: #1a257c;
$custom-light: #685fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a257c",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 124
  },
  "hsl": {
    "h": 233.265,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32217,
    "c": 0.14587,
    "h": 269.9
  },
  "luminance": 0.02998
}

Semantic roles & 50–950 ramp

primary

#1A257C

secondary

#B0A442

accent

#D540E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1A257C

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

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