#68B3FF
Closest named color: Carolina Blue (#8AB8FE). oklch(75% 0.134 250.3), rgb(104, 179, 255).
Aa
Black text reads best on this color (9.48:1).
About this color
#68B3FF is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.134 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.039 away. Black text reads best on it, at 9.48:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.48:1 |
| White text | 2.21:1 |
Values
| HEX | #68B3FF |
| RGB | rgb(104, 179, 255) |
| HSL | hsl(210, 100%, 70%) |
| OKLCH | oklch(75% 0.134 250.3) |
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 #68B3FF | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #68B3FF | 9.48:1 | AAA | Lc 60.5 | Content text, not long reading |
| #68B3FF text on white | 2.21:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #68B3FF text on black | 9.48:1 | AAA | Lc -58.8 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200
#C3DCF7
oklch(88.5% 0.046 250.4)
-
Step 300
300
#98C5F5
oklch(80.9% 0.083 250.5)
-
Step 400
400 (this color)
#68B3FF
oklch(75% 0.134 250.3)
-
Step 500
500
#1B8CEB
oklch(63% 0.17 250.4)
-
Step 600
600
#0075CB
oklch(55.5% 0.159 250.4)
-
Step 700
700
#0062AC
oklch(49% 0.141 250.5)
-
Step 800
800
#00508E
oklch(42.6% 0.122 250.5)
-
Step 900
900
#004378
oklch(37.8% 0.108 250.3)
-
Step 950
950
#052747
oklch(26.9% 0.071 251)
#68B3FF 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) | #93B6FF | 0.047 |
| Deuteranopia (no green cones) | #7FA8FD | 0.034 |
| Tritanopia (no blue cones) | #00C5CE | 0.110 |
| Achromatopsia (no color) | #AEAEAE | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #68B3FF
#68B3FF
oklch(75% 0.134 250.3)
- #E39E43
#E39E43
oklch(75% 0.133 70.5)
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 #68B3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.039
- Deep Sky Blue #00BFFF ΔE 0.051
- Lightblue #7BC8F6 ΔE 0.067
- Vivid Sky Blue #4CC9F0 ΔE 0.070
- Sky #82CAFC ΔE 0.072
- Periwinkle Blue #8F99FB ΔE 0.074
- Pastel Blue #A2BFFE ΔE 0.074
- Bright Sky Blue #02CCFE ΔE 0.075
Use #68B3FF 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.