#778CA3
Closest named color: Blue Grey (#758DA3). oklch(63.2% 0.042 250.9), rgb(119, 140, 163).
Aa
Black text reads best on this color (6.06:1).
About this color
#778CA3 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.042 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.004 away. Black text reads best on it, at 6.06:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.06:1 |
| White text | 3.46:1 |
Values
| HEX | #778CA3 |
| RGB | rgb(119, 140, 163) |
| HSL | hsl(211, 19%, 55%) |
| OKLCH | oklch(63.2% 0.042 250.9) |
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 #778CA3 | 3.46:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #778CA3 | 6.06:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #778CA3 text on white | 3.46:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #778CA3 text on black | 6.06:1 | AA | Lc -39.5 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#92A3B5
oklch(70.8% 0.033 249.8)
-
Step 500
500 (this color)
#778CA3
oklch(63.2% 0.042 250.9)
-
Step 600
600
#5F768E
oklch(55.7% 0.046 249.8)
-
Step 700
700
#4F6379
oklch(49.2% 0.043 251.1)
-
Step 800
800
#415162
oklch(42.8% 0.035 250.2)
-
Step 900
900
#374350
oklch(37.8% 0.027 250.6)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#778CA3 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) | #848CA4 | 0.018 |
| Deuteranopia (no green cones) | #7E88A3 | 0.014 |
| Tritanopia (no blue cones) | #6B9193 | 0.036 |
| Achromatopsia (no color) | #8A8A8A | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778CA3
#778CA3
oklch(63.2% 0.042 250.9)
- #9A866E
#9A866E
oklch(63.2% 0.042 72)
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 #778CA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.004
- Silver Lake Blue #778DA9 ΔE 0.009
- Light Slate Gray #778899 ΔE 0.016
- Steel #738595 ΔE 0.026
- Lavender Gray #7E7F9A ΔE 0.035
- Slate Gray #708090 ΔE 0.041
- Faded Blue #658CBB ΔE 0.041
- Steel Grey #6F828A ΔE 0.044
Use #778CA3 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.