#1736B4#1736B4

#1736B4 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 40.9% C 0.200 H 265.9°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#1736B4
RGB	rgb(23, 54, 180)
HSL	hsl(228, 77%, 40%)
HSV	hsv(228, 87%, 71%)
CMYK	cmyk(87.2%, 70%, 0%, 29.4%)
CIE-LAB	lab(29.70, 38.33, -68.88)
CIE-LCH	lch(29.70, 78.83, 299.10°)
OKLab	oklab(40.92% -0.0145 -0.1997)
OKLCH	oklch(40.92% 0.2 265.9)
XYZ	xyz(9.9078, 6.1145, 43.8292)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1736B4 #B49517

analogous

#1784B4 #1736B4 #4717B4

triadic

#1736B4 #B41736 #36B417

tetradic

#1736B4 #B41784 #B49517 #17B447

square

#1736B4 #B41784 #B49517 #17B447

split-complementary

#1736B4 #B44717 #84B417

monochromatic

#091547 #10267E #1736B4 #254BE3 #5B78EA

Accessibility & contrast

On white

9.45

#1736B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1736B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1736B4

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1736B4	#FFFFFF	#000000	##FFFFFF
##1736B4	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#005971

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1736b4;
/* rgb */ color: rgb(23, 54, 180);
/* oklch */ color: oklch(40.9% 0.200 265.9);

Tailwind

colors: {
  custom: {
    50: '#756dcc',
    500: '#1736b4',
    950: '#000000',
  },
}

SCSS

$custom: #1736b4;
$custom-light: #756dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#1736b4",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 180
  },
  "hsl": {
    "h": 228.153,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4092,
    "c": 0.20026,
    "h": 265.9
  },
  "luminance": 0.06116
}

Semantic roles & 50–950 ramp

primary

#1736B4

secondary

#CEB759

accent

#CE34F4

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1736B4

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

Preview Lab → · Contrast checker → · Palette generator →