#256999#256999

#256999 is a mid, moderate cyan. Relative luminance 0.128; OKLCH L 50.1% C 0.102 H 243.5°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#256999
RGB	rgb(37, 105, 153)
HSL	hsl(205, 61%, 37%)
HSV	hsv(205, 76%, 60%)
CMYK	cmyk(75.8%, 31.4%, 0%, 40%)
CIE-LAB	lab(42.45, -4.21, -32.18)
CIE-LCH	lch(42.45, 32.45, 262.55°)
OKLab	oklab(50.15% -0.0454 -0.0911)
OKLCH	oklch(50.15% 0.102 243.5)
XYZ	xyz(11.5621, 12.7950, 31.9911)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256999 #995525

analogous

#25998F #256999 #252F99

triadic

#256999 #992569 #699925

tetradic

#256999 #8F2599 #995525 #2F9925

square

#256999 #8F2599 #995525 #2F9925

split-complementary

#256999 #99252F #998F25

monochromatic

#0D2536 #194768 #256999 #318BCA #60A7D9

Accessibility & contrast

On white

5.90

#256999 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#256999 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256999

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256999	#FFFFFF	#000000	##FFFFFF
##256999	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536A9B

Deuteranopia (green-blind)

#435F98

Tritanopia (blue-blind)

#00757A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #256999;
/* rgb */ color: rgb(37, 105, 153);
/* oklch */ color: oklch(50.1% 0.102 243.5);

Tailwind

colors: {
  custom: {
    50: '#7093b7',
    500: '#256999',
    950: '#000000',
  },
}

SCSS

$custom: #256999;
$custom-light: #7093b7;
$custom-dark: #000000;

JSON

{
  "hex": "#256999",
  "rgb": {
    "r": 37,
    "g": 105,
    "b": 153
  },
  "hsl": {
    "h": 204.828,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.50148,
    "c": 0.10183,
    "h": 243.5
  },
  "luminance": 0.12796
}

Semantic roles & 50–950 ramp

primary

#256999

secondary

#BE845C

accent

#8644E4

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #256999

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

Preview Lab → · Contrast checker → · Palette generator →