#78A9DB
Closest named color: Greyblue (#77A1B5). oklch(71.9% 0.09 249.7), rgb(120, 169, 219).
Aa
Black text reads best on this color (8.49:1).
About this color
#78A9DB is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.090 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.055 away. Black text reads best on it, at 8.49:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.49:1 |
| White text | 2.47:1 |
Values
| HEX | #78A9DB |
| RGB | rgb(120, 169, 219) |
| HSL | hsl(210, 58%, 66%) |
| OKLCH | oklch(71.9% 0.09 249.7) |
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 #78A9DB | 2.47:1 | Fails | Lc -53.5 | Large or bold text, headings |
| Black text on #78A9DB | 8.49:1 | AAA | Lc 55.5 | Large or bold text, headings |
| #78A9DB text on white | 2.47:1 | Fails | Lc 48.5 | Large or bold text, headings |
| #78A9DB text on black | 8.49:1 | AAA | Lc -53.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E4
oklch(80.8% 0.056 249.4)
-
Step 400
400 (this color)
#78A9DB
oklch(71.9% 0.09 249.7)
-
Step 500
500
#4E8ECC
oklch(63.1% 0.115 249.4)
-
Step 600
600
#2F77B9
oklch(55.6% 0.125 249.5)
-
Step 700
700
#21649F
oklch(49.2% 0.115 249.2)
-
Step 800
800
#1E5181
oklch(42.6% 0.096 250.1)
-
Step 900
900
#1E4468
oklch(37.7% 0.076 249.4)
-
Step 950
950
#13283D
oklch(27.1% 0.048 250)
#78A9DB 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) | #95AADD | 0.035 |
| Deuteranopia (no green cones) | #89A0DA | 0.029 |
| Tritanopia (no blue cones) | #4FB4BA | 0.077 |
| Achromatopsia (no color) | #A5A5A5 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A9DB
#78A9DB
oklch(71.9% 0.09 249.7)
- #C99A64
#C99A64
oklch(71.8% 0.09 69.4)
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 #78A9DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.055
- Bluegrey #85A3B2 ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.064
- Cool Steel #97A7B3 ΔE 0.066
- Cool Gray #8D99AE ΔE 0.069
- Cornflower Blue #6495ED ΔE 0.072
- Light Grey Blue #9DBCD4 ΔE 0.075
Use #78A9DB 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.