#1757B3#1757B3

#1757B3 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.3% C 0.160 H 258.7°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#1757B3
RGB	rgb(23, 87, 179)
HSL	hsl(215, 77%, 40%)
HSV	hsv(215, 87%, 70%)
CMYK	cmyk(87.2%, 51.4%, 0%, 29.8%)
CIE-LAB	lab(38.29, 16.09, -54.25)
CIE-LCH	lch(38.29, 56.58, 286.52°)
OKLab	oklab(47.32% -0.0313 -0.1564)
OKLCH	oklch(47.32% 0.16 258.7)
XYZ	xyz(11.8952, 10.2517, 43.9909)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1757B3 #B37317

analogous

#17A5B3 #1757B3 #2517B3

triadic

#1757B3 #B31757 #57B317

tetradic

#1757B3 #B317A5 #B37317 #17B325

square

#1757B3 #B317A5 #B37317 #17B325

split-complementary

#1757B3 #B32517 #A5B317

monochromatic

#092247 #103D7D #1757B3 #2472E3 #5B95EA

Accessibility & contrast

On white

6.88

#1757B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1757B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1757B3

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1757B3	#FFFFFF	#000000	##FFFFFF
##1757B3	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1861B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1757b3;
/* rgb */ color: rgb(23, 87, 179);
/* oklch */ color: oklch(47.3% 0.160 258.7);

Tailwind

colors: {
  custom: {
    50: '#7285ca',
    500: '#1757b3',
    950: '#000000',
  },
}

SCSS

$custom: #1757b3;
$custom-light: #7285ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1757b3",
  "rgb": {
    "r": 23,
    "g": 87,
    "b": 179
  },
  "hsl": {
    "h": 215.385,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47315,
    "c": 0.15952,
    "h": 258.7
  },
  "luminance": 0.10253
}

Semantic roles & 50–950 ramp

primary

#1757B3

secondary

#CD9D58

accent

#A534F4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1757B3

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

Preview Lab → · Contrast checker → · Palette generator →