#6BB4DB
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(73.7% 0.092 233.3), rgb(107, 180, 219).
Aa
Black text reads best on this color (9.17:1).
About this color
#6BB4DB is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.092 and its hue 233°. 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 9.17:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.17:1 |
| White text | 2.28:1 |
Values
| HEX | #6BB4DB |
| RGB | rgb(107, 180, 219) |
| HSL | hsl(201, 61%, 64%) |
| OKLCH | oklch(73.7% 0.092 233.3) |
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 #6BB4DB | 2.28:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #6BB4DB | 9.17:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #6BB4DB text on white | 2.28:1 | Fails | Lc 45.0 | Non-text elements, placeholder text |
| #6BB4DB text on black | 9.17:1 | AAA | Lc -57.1 | 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
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C5DDEB
oklch(88.4% 0.032 233.3)
-
Step 300
300
#9CC8E0
oklch(81% 0.057 232.2)
-
Step 400
400 (this color)
#6BB4DB
oklch(73.7% 0.092 233.3)
-
Step 500
500
#2994C5
oklch(63% 0.118 233.6)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#024864
oklch(37.8% 0.077 233.1)
-
Step 950
950
#072A3A
oklch(26.9% 0.049 232.7)
#6BB4DB 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) | #A1B2DD | 0.061 |
| Deuteranopia (no green cones) | #92A6DA | 0.054 |
| Tritanopia (no blue cones) | #2ABEC1 | 0.069 |
| Achromatopsia (no color) | #ABABAB | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6BB4DB
#6BB4DB
oklch(73.7% 0.092 233.3)
- #D89A72
#D89A72
oklch(73.7% 0.092 53.6)
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 #6BB4DB, 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
- Light Grey Blue #9DBCD4 ΔE 0.063
- Carolina Blue #8AB8FE ΔE 0.063
- Lightblue #7BC8F6 ΔE 0.064
- Deep Sky Blue #00BFFF ΔE 0.064
- Light Cornflower Blue #98C1D9 ΔE 0.064
- Greyblue #77A1B5 ΔE 0.064
- Bluegrey #85A3B2 ΔE 0.066
Use #6BB4DB 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.