#1634B4#1634B4

#1634B4 is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 40.6% C 0.203 H 265.9°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#1634B4
RGB	rgb(22, 52, 180)
HSL	hsl(229, 78%, 40%)
HSV	hsv(229, 88%, 71%)
CMYK	cmyk(87.8%, 71.1%, 0%, 29.4%)
CIE-LAB	lab(29.21, 39.54, -69.69)
CIE-LCH	lch(29.21, 80.12, 299.57°)
OKLab	oklab(40.56% -0.0145 -0.2021)
OKLCH	oklch(40.56% 0.203 265.9)
XYZ	xyz(9.7942, 5.9206, 43.7977)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1634B4 #B49616

analogous

#1683B4 #1634B4 #4716B4

triadic

#1634B4 #B41634 #34B416

tetradic

#1634B4 #B41683 #B49616 #16B447

square

#1634B4 #B41683 #B49616 #16B447

split-complementary

#1634B4 #B44716 #83B416

monochromatic

#091447 #0F247D #1634B4 #2348E4 #5A75EB

Accessibility & contrast

On white

9.61

#1634B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1634B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1634B4

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1634B4	#FFFFFF	#000000	##FFFFFF
##1634B4	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB8

Deuteranopia (green-blind)

#003DB2

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1634b4;
/* rgb */ color: rgb(22, 52, 180);
/* oklch */ color: oklch(40.6% 0.203 265.9);

Tailwind

colors: {
  custom: {
    50: '#756ccc',
    500: '#1634b4',
    950: '#000000',
  },
}

SCSS

$custom: #1634b4;
$custom-light: #756ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#1634b4",
  "rgb": {
    "r": 22,
    "g": 52,
    "b": 180
  },
  "hsl": {
    "h": 228.608,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40558,
    "c": 0.20262,
    "h": 265.9
  },
  "luminance": 0.05922
}

Semantic roles & 50–950 ramp

primary

#1634B4

secondary

#CEB858

accent

#D033F5

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1634B4

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

Preview Lab → · Contrast checker → · Palette generator →