#5F779D
Closest named color: Stormy Blue (#507B9C). oklch(56.5% 0.066 259.4), rgb(95, 119, 157).
Aa
Black text reads best on this color (4.61:1).
About this color
#5F779D is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.066 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.020 away. Black text reads best on it, at 4.61:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.61:1 |
| White text | 4.55:1 |
Values
| HEX | #5F779D |
| RGB | rgb(95, 119, 157) |
| HSL | hsl(217, 25%, 49%) |
| OKLCH | oklch(56.5% 0.066 259.4) |
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 #5F779D | 4.55:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #5F779D | 4.61:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #5F779D text on white | 4.55:1 | AA | Lc 71.6 | Content text, not long reading |
| #5F779D text on black | 4.61:1 | AA | Lc -30.1 | 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
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D3DAE4
oklch(88.6% 0.016 257.2)
-
Step 300
300
#B6C1D4
oklch(80.8% 0.029 261.5)
-
Step 400
400
#8FA2BF
oklch(70.7% 0.048 258.7)
-
Step 500
500
#748BAE
oklch(63.2% 0.059 258.7)
-
Step 600
600 (this color)
#5F779D
oklch(56.5% 0.066 259.4)
-
Step 700
700
#4C6184
oklch(49% 0.062 260.4)
-
Step 800
800
#3E506B
oklch(42.8% 0.051 258.3)
-
Step 900
900
#354257
oklch(37.7% 0.04 259.9)
-
Step 950
950
#1F2733
oklch(27.1% 0.025 258.3)
#5F779D 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) | #69799F | 0.015 |
| Deuteranopia (no green cones) | #63739C | 0.012 |
| Tritanopia (no blue cones) | #4A7F84 | 0.058 |
| Achromatopsia (no color) | #767676 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F779D
#5F779D
oklch(56.5% 0.066 259.4)
- #8B7248
#8B7248
oklch(56.6% 0.066 79.8)
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 #5F779D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.020
- Dull Blue #49759C ΔE 0.028
- Cerulean #457B9D ΔE 0.030
- Metallic Blue #4F738E ΔE 0.033
- Grey Blue #647D8E ΔE 0.034
- Off Blue #5684AE ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.043
- Slate Gray #708090 ΔE 0.045
Use #5F779D 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.