#6DB4DF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(74% 0.095 236.6), rgb(109, 180, 223).
Aa
Black text reads best on this color (9.24:1).
About this color
#6DB4DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.095 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.057 away. Black text reads best on it, at 9.24:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.24:1 |
| White text | 2.27:1 |
Values
| HEX | #6DB4DF |
| RGB | rgb(109, 180, 223) |
| HSL | hsl(203, 64%, 65%) |
| OKLCH | oklch(74% 0.095 236.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6DB4DF | 2.27:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #6DB4DF | 9.24:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #6DB4DF text on white | 2.27:1 | Fails | Lc 44.7 | Non-text elements, placeholder text |
| #6DB4DF text on black | 9.24:1 | AAA | Lc -57.5 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDEC
oklch(88.5% 0.032 236.4)
-
Step 300
300
#9DC7E2
oklch(80.9% 0.059 236.7)
-
Step 400
400 (this color)
#6DB4DF
oklch(74% 0.095 236.6)
-
Step 500
500
#2C93C9
oklch(63% 0.122 236.9)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#054766
oklch(37.7% 0.079 236.7)
-
Step 950
950
#082A3C
oklch(27.1% 0.051 236.4)
#6DB4DF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #A0B3E1 | 0.058 |
| Deuteranopia (no green cones) | #90A7DE | 0.049 |
| Tritanopia (no blue cones) | #2CBFC2 | 0.075 |
| Achromatopsia (no color) | #ACACAC | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DB4DF
#6DB4DF
oklch(74% 0.095 236.6)
- #D99B6F
#D99B6F
oklch(73.9% 0.095 56)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6DB4DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.057
- Carolina Blue #8AB8FE ΔE 0.057
- Lightblue #7BC8F6 ΔE 0.061
- Deep Sky Blue #00BFFF ΔE 0.061
- Light Grey Blue #9DBCD4 ΔE 0.062
- Light Cornflower Blue #98C1D9 ΔE 0.064
- Greyblue #77A1B5 ΔE 0.068
- Bluegrey #85A3B2 ΔE 0.069
Use #6DB4DF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.