#517798
Closest named color: Stormy Blue (#507B9C). oklch(55.4% 0.067 245.6), rgb(81, 119, 152).
Aa
White text reads best on this color (4.72:1).
About this color
#517798 is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.067 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.012 away. White text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #517798 |
| RGB | rgb(81, 119, 152) |
| HSL | hsl(208, 30%, 46%) |
| OKLCH | oklch(55.4% 0.067 245.6) |
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 #517798 | 4.72:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #517798 | 4.44:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #517798 text on white | 4.72:1 | AA | Lc 72.8 | Content text, not long reading |
| #517798 text on black | 4.44:1 | AA large text | Lc -28.9 | Dividers and decoration only |
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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B1C3D3
oklch(80.9% 0.03 245)
-
Step 400
400
#88A4BD
oklch(70.6% 0.048 245.5)
-
Step 500
500
#6A8EAD
oklch(63.2% 0.062 245)
-
Step 600
600 (this color)
#517798
oklch(55.4% 0.067 245.6)
-
Step 700
700
#426482
oklch(49% 0.062 246.1)
-
Step 800
800
#37526A
oklch(42.7% 0.052 246.2)
-
Step 900
900
#2F4456
oklch(37.7% 0.041 245)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#517798 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) | #69779A | 0.031 |
| Deuteranopia (no green cones) | #607097 | 0.025 |
| Tritanopia (no blue cones) | #337F82 | 0.057 |
| Achromatopsia (no color) | #737373 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517798
#517798
oklch(55.4% 0.067 245.6)
- #8E6B48
#8E6B48
oklch(55.5% 0.067 65.7)
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 #517798, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.012
- Dull Blue #49759C ΔE 0.013
- Cerulean #457B9D ΔE 0.016
- Metallic Blue #4F738E ΔE 0.018
- Muted Blue #3B719F ΔE 0.034
- Grey Blue #647D8E ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.037
- Off Blue #5684AE ΔE 0.046
Use #517798 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.