#1D648B#1D648B

#1D648B is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.092 H 237.8°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D648B
RGB	rgb(29, 100, 139)
HSL	hsl(201, 65%, 33%)
HSV	hsv(201, 79%, 55%)
CMYK	cmyk(79.1%, 28.1%, 0%, 45.5%)
CIE-LAB	lab(39.98, -7.45, -27.69)
CIE-LCH	lch(39.98, 28.67, 254.93°)
OKLab	oklab(47.9% -0.0493 -0.0782)
OKLCH	oklch(47.9% 0.092 237.8)
XYZ	xyz(9.7222, 11.2385, 26.0779)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D648B #8B441D

analogous

#1D8B7B #1D648B #1D2D8B

triadic

#1D648B #8B1D64 #648B1D

tetradic

#1D648B #7B1D8B #8B441D #2D8B1D

square

#1D648B #7B1D8B #8B441D #2D8B1D

split-complementary

#1D648B #8B1D2D #8B7B1D

monochromatic

#081B26 #124058 #1D648B #2888BE #49A6D9

Accessibility & contrast

On white

6.47

#1D648B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#1D648B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D648B

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D648B	#FFFFFF	#000000	##FFFFFF
##1D648B	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51648D

Deuteranopia (green-blind)

#435A8A

Tritanopia (blue-blind)

#006E71

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1d648b;
/* rgb */ color: rgb(29, 100, 139);
/* oklch */ color: oklch(47.9% 0.092 237.8);

Tailwind

colors: {
  custom: {
    50: '#6b90ad',
    500: '#1d648b',
    950: '#000000',
  },
}

SCSS

$custom: #1d648b;
$custom-light: #6b90ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d648b",
  "rgb": {
    "r": 29,
    "g": 100,
    "b": 139
  },
  "hsl": {
    "h": 201.273,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.47901,
    "c": 0.09246,
    "h": 237.8
  },
  "luminance": 0.1124
}

Semantic roles & 50–950 ramp

primary

#1D648B

secondary

#BB7149

accent

#7B3FE8

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1D648B

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

Preview Lab → · Contrast checker → · Palette generator →