#78A9C9
Closest named color: Greyblue (#77A1B5). oklch(71.2% 0.07 237.7), rgb(120, 169, 201).
Aa
Black text reads best on this color (8.31:1).
About this color
#78A9C9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.070 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.032 away. Black text reads best on it, at 8.31:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #78A9C9 |
| RGB | rgb(120, 169, 201) |
| HSL | hsl(204, 43%, 63%) |
| OKLCH | oklch(71.2% 0.07 237.7) |
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 #78A9C9 | 2.52:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #78A9C9 | 8.31:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #78A9C9 text on white | 2.52:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #78A9C9 text on black | 8.31:1 | AAA | Lc -52.5 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE8
oklch(88.5% 0.025 238.4)
-
Step 300
300
#A7C5DA
oklch(80.8% 0.044 238.6)
-
Step 400
400 (this color)
#78A9C9
oklch(71.2% 0.07 237.7)
-
Step 500
500
#5191B9
oklch(63% 0.089 237.9)
-
Step 600
600
#327BA5
oklch(55.6% 0.097 237.5)
-
Step 700
700
#23678E
oklch(49% 0.091 238.2)
-
Step 800
800
#205473
oklch(42.6% 0.075 238.4)
-
Step 900
900
#20465D
oklch(37.7% 0.059 237.6)
-
Step 950
950
#142936
oklch(27% 0.036 237.4)
#78A9C9 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) | #9BA8CB | 0.043 |
| Deuteranopia (no green cones) | #909FC8 | 0.037 |
| Tritanopia (no blue cones) | #59B1B3 | 0.055 |
| Achromatopsia (no color) | #A3A3A3 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A9C9
#78A9C9
oklch(71.2% 0.07 237.7)
- #C49877
#C49877
oklch(71.3% 0.07 58.2)
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 #78A9C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.032
- Bluegrey #85A3B2 ΔE 0.034
- Bluey Grey #89A0B0 ΔE 0.040
- Cool Steel #97A7B3 ΔE 0.046
- Cool Gray #8D99AE ΔE 0.052
- Cool Grey #95A3A6 ΔE 0.056
- Pewter #96A8A1 ΔE 0.065
- Turquoise Blue #06B1C4 ΔE 0.069
Use #78A9C9 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.