#1C257E#1C257E

#1C257E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.148 H 270.7°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#1C257E
RGB	rgb(28, 37, 126)
HSL	hsl(234, 64%, 30%)
HSV	hsv(234, 78%, 49%)
CMYK	cmyk(77.8%, 70.6%, 0%, 50.6%)
CIE-LAB	lab(20.34, 29.50, -51.16)
CIE-LCH	lch(20.34, 59.05, 299.97°)
OKLab	oklab(32.53% 0.0018 -0.148)
OKLCH	oklch(32.53% 0.148 270.7)
XYZ	xyz(4.9051, 3.0758, 20.0698)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C257E #7E751C

analogous

#1C567E #1C257E #441C7E

triadic

#1C257E #7E1C25 #257E1C

tetradic

#1C257E #7E1C56 #7E751C #1C7E44

square

#1C257E #7E1C56 #7E751C #1C7E44

split-complementary

#1C257E #7E441C #567E1C

monochromatic

#06081A #11164C #1C257E #2734B0 #404ED5

Accessibility & contrast

On white

13.00

#1C257E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1C257E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C257E

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C257E	#FFFFFF	#000000	##FFFFFF
##1C257E	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)

#003681

Deuteranopia (green-blind)

#002C7C

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c257e;
/* rgb */ color: rgb(28, 37, 126);
/* oklch */ color: oklch(32.5% 0.148 270.7);

Tailwind

colors: {
  custom: {
    50: '#6960a4',
    500: '#1c257e',
    950: '#000000',
  },
}

SCSS

$custom: #1c257e;
$custom-light: #6960a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c257e",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 126
  },
  "hsl": {
    "h": 234.49,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.32534,
    "c": 0.14804,
    "h": 270.7
  },
  "luminance": 0.03076
}

Semantic roles & 50–950 ramp

primary

#1C257E

secondary

#B2A844

accent

#D741E7

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1C257E

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

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