#778A9F
Closest named color: Blue Grey (#758DA3). oklch(62.6% 0.039 251), rgb(119, 138, 159).
Aa
Black text reads best on this color (5.92:1).
About this color
#778A9F is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.039 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.009 away. Black text reads best on it, at 5.92:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 5.92:1 |
| White text | 3.54:1 |
Values
| HEX | #778A9F |
| RGB | rgb(119, 138, 159) |
| HSL | hsl(212, 17%, 55%) |
| OKLCH | oklch(62.6% 0.039 251) |
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 #778A9F | 3.54:1 | AA large text | Lc -68.5 | Content text, not long reading |
| Black text on #778A9F | 5.92:1 | AA | Lc 41.0 | Non-text elements, placeholder text |
| #778A9F text on white | 3.54:1 | AA large text | Lc 63.1 | Content text, not long reading |
| #778A9F text on black | 5.92:1 | AA | Lc -38.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B8C2CD
oklch(81% 0.019 250.6)
-
Step 400
400
#93A2B3
oklch(70.6% 0.03 251.6)
-
Step 500
500 (this color)
#778A9F
oklch(62.6% 0.039 251)
-
Step 600
600
#61758C
oklch(55.5% 0.043 252.2)
-
Step 700
700
#506377
oklch(49.2% 0.04 250)
-
Step 800
800
#425160
oklch(42.8% 0.031 248.6)
-
Step 900
900
#38434F
oklch(37.8% 0.025 250.7)
-
Step 950
950
#21272E
oklch(27% 0.016 252.4)
#778A9F 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) | #828AA0 | 0.015 |
| Deuteranopia (no green cones) | #7E869F | 0.014 |
| Tritanopia (no blue cones) | #6C8F91 | 0.033 |
| Achromatopsia (no color) | #888888 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778A9F
#778A9F
oklch(62.6% 0.039 251)
- #97846F
#97846F
oklch(62.5% 0.038 69.8)
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 #778A9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.009
- Light Slate Gray #778899 ΔE 0.009
- Silver Lake Blue #778DA9 ΔE 0.015
- Steel #738595 ΔE 0.019
- Lavender Gray #7E7F9A ΔE 0.030
- Slate Gray #708090 ΔE 0.034
- Steel Grey #6F828A ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.044
Use #778A9F 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.