#65779E
Closest named color: Stormy Blue (#507B9C). oklch(57% 0.064 265.2), rgb(101, 119, 158).
Aa
Black text reads best on this color (4.68:1).
About this color
#65779E is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.064 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.028 away. Black text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.68:1 |
| White text | 4.48:1 |
Values
| HEX | #65779E |
| RGB | rgb(101, 119, 158) |
| HSL | hsl(221, 23%, 51%) |
| OKLCH | oklch(57% 0.064 265.2) |
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 #65779E | 4.48:1 | AA large text | Lc -76.6 | Fine for body text |
| Black text on #65779E | 4.68:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #65779E text on white | 4.48:1 | AA large text | Lc 71.1 | Content text, not long reading |
| #65779E text on black | 4.68:1 | AA | Lc -30.6 | 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 600.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E4
oklch(88.5% 0.016 266.3)
-
Step 300
300
#B8C1D4
oklch(81% 0.029 265.4)
-
Step 400
400
#93A1BE
oklch(70.8% 0.045 264.9)
-
Step 500
500
#7889AE
oklch(63% 0.059 265.5)
-
Step 600
600 (this color)
#65779E
oklch(57% 0.064 265.2)
-
Step 700
700
#506083
oklch(49% 0.06 265.3)
-
Step 800
800
#424F6B
oklch(42.8% 0.05 265.1)
-
Step 900
900
#384156
oklch(37.6% 0.038 266.6)
-
Step 950
950
#212633
oklch(27% 0.025 268.3)
#65779E 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) | #6A7AA0 | 0.012 |
| Deuteranopia (no green cones) | #64759D | 0.006 |
| Tritanopia (no blue cones) | #547F84 | 0.058 |
| Achromatopsia (no color) | #777777 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #65779E
#65779E
oklch(57% 0.064 265.2)
- #89754A
#89754A
oklch(57.1% 0.065 85.5)
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 #65779E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.028
- Grey Blue #647D8E ΔE 0.035
- Dull Blue #49759C ΔE 0.035
- Cerulean #457B9D ΔE 0.038
- Off Blue #5684AE ΔE 0.040
- Metallic Blue #4F738E ΔE 0.040
- Slate Gray #708090 ΔE 0.042
- Dusty Blue #5A86AD ΔE 0.043
Use #65779E 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.