#1734B4#1734B4

#1734B4 is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 40.6% C 0.202 H 266.1°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#1734B4
RGB	rgb(23, 52, 180)
HSL	hsl(229, 77%, 40%)
HSV	hsv(229, 87%, 71%)
CMYK	cmyk(87.2%, 71.1%, 0%, 29.4%)
CIE-LAB	lab(29.24, 39.59, -69.64)
CIE-LCH	lch(29.24, 80.10, 299.62°)
OKLab	oklab(40.59% -0.0138 -0.2019)
OKLCH	oklch(40.59% 0.202 266.1)
XYZ	xyz(9.8167, 5.9322, 43.7988)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1734B4 #B49717

analogous

#1783B4 #1734B4 #4817B4

triadic

#1734B4 #B41734 #34B417

tetradic

#1734B4 #B41783 #B49717 #17B448

square

#1734B4 #B41783 #B49717 #17B448

split-complementary

#1734B4 #B44817 #83B417

monochromatic

#091547 #10247E #1734B4 #2548E3 #5B76EA

Accessibility & contrast

On white

9.60

#1734B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1734B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1734B4

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1734B4	#FFFFFF	#000000	##FFFFFF
##1734B4	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB8

Deuteranopia (green-blind)

#003DB2

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1734b4;
/* rgb */ color: rgb(23, 52, 180);
/* oklch */ color: oklch(40.6% 0.202 266.1);

Tailwind

colors: {
  custom: {
    50: '#756ccc',
    500: '#1734b4',
    950: '#000000',
  },
}

SCSS

$custom: #1734b4;
$custom-light: #756ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#1734b4",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 180
  },
  "hsl": {
    "h": 228.917,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40587,
    "c": 0.20241,
    "h": 266.1
  },
  "luminance": 0.05933
}

Semantic roles & 50–950 ramp

primary

#1734B4

secondary

#CEB859

accent

#D034F4

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1734B4

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

Preview Lab → · Contrast checker → · Palette generator →