#1657B4#1657B4

#1657B4 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.161 H 258.7°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#1657B4
RGB	rgb(22, 87, 180)
HSL	hsl(215, 78%, 40%)
HSV	hsv(215, 88%, 71%)
CMYK	cmyk(87.8%, 51.7%, 0%, 29.4%)
CIE-LAB	lab(38.34, 16.42, -54.76)
CIE-LCH	lch(38.34, 57.17, 286.70°)
OKLab	oklab(47.37% -0.0316 -0.1579)
OKLCH	oklch(47.37% 0.161 258.7)
XYZ	xyz(11.9743, 10.2807, 44.5244)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1657B4 #B47316

analogous

#16A6B4 #1657B4 #2416B4

triadic

#1657B4 #B41657 #57B416

tetradic

#1657B4 #B416A6 #B47316 #16B424

square

#1657B4 #B416A6 #B47316 #16B424

split-complementary

#1657B4 #B42416 #A6B416

monochromatic

#092247 #0F3D7D #1657B4 #2372E4 #5A95EB

Accessibility & contrast

On white

6.87

#1657B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#1657B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1657B4

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1657B4	#FFFFFF	#000000	##FFFFFF
##1657B4	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1662B7

Deuteranopia (green-blind)

#0054B2

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1657b4;
/* rgb */ color: rgb(22, 87, 180);
/* oklch */ color: oklch(47.4% 0.161 258.7);

Tailwind

colors: {
  custom: {
    50: '#7385cb',
    500: '#1657b4',
    950: '#000000',
  },
}

SCSS

$custom: #1657b4;
$custom-light: #7385cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1657b4",
  "rgb": {
    "r": 22,
    "g": 87,
    "b": 180
  },
  "hsl": {
    "h": 215.316,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47371,
    "c": 0.16105,
    "h": 258.7
  },
  "luminance": 0.10282
}

Semantic roles & 50–950 ramp

primary

#1657B4

secondary

#CE9D58

accent

#A533F5

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1657B4

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

Preview Lab → · Contrast checker → · Palette generator →