#1C407B#1C407B

#1C407B is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.0% C 0.109 H 259.8°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#1C407B
RGB	rgb(28, 64, 123)
HSL	hsl(217, 63%, 30%)
HSV	hsv(217, 77%, 48%)
CMYK	cmyk(77.2%, 48%, 0%, 51.8%)
CIE-LAB	lab(27.69, 9.50, -37.32)
CIE-LCH	lch(27.69, 38.51, 284.28°)
OKLab	oklab(37.96% -0.0192 -0.107)
OKLCH	oklch(37.96% 0.109 259.8)
XYZ	xyz(5.8861, 5.3431, 19.4562)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C407B #7B571C

analogous

#1C707B #1C407B #271C7B

triadic

#1C407B #7B1C40 #407B1C

tetradic

#1C407B #7B1C70 #7B571C #1C7B27

square

#1C407B #7B1C70 #7B571C #1C7B27

split-complementary

#1C407B #7B271C #707B1C

monochromatic

#060D19 #112649 #1C407B #275AAD #3E77D3

Accessibility & contrast

On white

10.15

#1C407B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1C407B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C407B

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C407B	#FFFFFF	#000000	##FFFFFF
##1C407B	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21467D

Deuteranopia (green-blind)

#0B3D7A

Tritanopia (blue-blind)

#004E57

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c407b;
/* rgb */ color: rgb(28, 64, 123);
/* oklch */ color: oklch(38.0% 0.109 259.8);

Tailwind

colors: {
  custom: {
    50: '#6774a2',
    500: '#1c407b',
    950: '#000000',
  },
}

SCSS

$custom: #1c407b;
$custom-light: #6774a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c407b",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 123
  },
  "hsl": {
    "h": 217.263,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37962,
    "c": 0.10874,
    "h": 259.8
  },
  "luminance": 0.05344
}

Semantic roles & 50–950 ramp

primary

#1C407B

secondary

#AF8644

accent

#A842E6

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C407B

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

Preview Lab → · Contrast checker → · Palette generator →