#317DB2#317DB2

#317DB2 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.110 H 242.8°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#317DB2
RGB	rgb(49, 125, 178)
HSL	hsl(205, 57%, 45%)
HSV	hsv(205, 72%, 70%)
CMYK	cmyk(72.5%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(50.14, -5.40, -34.74)
CIE-LCH	lch(50.14, 35.16, 261.17°)
OKLab	oklab(56.72% -0.0504 -0.0982)
OKLCH	oklch(56.72% 0.11 242.8)
XYZ	xyz(16.6330, 18.5327, 44.8114)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317DB2 #B26631

analogous

#31B2A7 #317DB2 #313DB2

triadic

#317DB2 #B2317D #7DB231

tetradic

#317DB2 #A731B2 #B26631 #3DB231

square

#317DB2 #A731B2 #B26631 #3DB231

split-complementary

#317DB2 #B2313D #B2A731

monochromatic

#173A52 #245B82 #317DB2 #519BCF #81B7DC

Accessibility & contrast

On white

4.46

#317DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#317DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317DB2

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317DB2	#FFFFFF	#000000	##000000
##317DB2	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB4

Deuteranopia (green-blind)

#5372B1

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #317db2;
/* rgb */ color: rgb(49, 125, 178);
/* oklch */ color: oklch(56.7% 0.110 242.8);

Tailwind

colors: {
  custom: {
    50: '#7aa2c9',
    500: '#317db2',
    950: '#000000',
  },
}

SCSS

$custom: #317db2;
$custom-light: #7aa2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#317db2",
  "rgb": {
    "r": 49,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 204.651,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56722,
    "c": 0.11043,
    "h": 242.8
  },
  "luminance": 0.18535
}

Semantic roles & 50–950 ramp

primary

#317DB2

secondary

#C59979

accent

#8648E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #317DB2

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

Preview Lab → · Contrast checker → · Palette generator →