#64779A
Closest named color: Stormy Blue (#507B9C). oklch(56.8% 0.059 262.4), rgb(100, 119, 154).
Aa
Black text reads best on this color (4.64:1).
About this color
#64779A is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.059 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.025 away. Black text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.64:1 |
| White text | 4.51:1 |
Values
| HEX | #64779A |
| RGB | rgb(100, 119, 154) |
| HSL | hsl(219, 21%, 50%) |
| OKLCH | oklch(56.8% 0.059 262.4) |
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 #64779A | 4.51:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #64779A | 4.64:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #64779A text on white | 4.51:1 | AA | Lc 71.4 | Content text, not long reading |
| #64779A text on black | 4.64:1 | AA | Lc -30.3 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E3
oklch(88.4% 0.015 264.5)
-
Step 300
300
#B7C1D2
oklch(80.8% 0.026 261.1)
-
Step 400
400
#93A1BC
oklch(70.7% 0.043 263.6)
-
Step 500
500
#788AAB
oklch(63.1% 0.054 262.5)
-
Step 600
600 (this color)
#64779A
oklch(56.8% 0.059 262.4)
-
Step 700
700
#506180
oklch(49.1% 0.054 262.2)
-
Step 800
800
#424F68
oklch(42.7% 0.045 263.2)
-
Step 900
900
#374255
oklch(37.7% 0.036 261.2)
-
Step 950
950
#212732
oklch(27.2% 0.022 262.5)
#64779A 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) | #6B799C | 0.012 |
| Deuteranopia (no green cones) | #667499 | 0.008 |
| Tritanopia (no blue cones) | #547E83 | 0.052 |
| Achromatopsia (no color) | #767676 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64779A
#64779A
oklch(56.8% 0.059 262.4)
- #88744E
#88744E
oklch(56.8% 0.059 83)
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 #64779A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.025
- Grey Blue #647D8E ΔE 0.030
- Dull Blue #49759C ΔE 0.034
- Cerulean #457B9D ΔE 0.035
- Metallic Blue #4F738E ΔE 0.035
- Slate Gray #708090 ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.041
- Off Blue #5684AE ΔE 0.042
Use #64779A 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.