#5A718A
Closest named color: Metallic Blue (#4F738E). oklch(54% 0.048 250.8), rgb(90, 113, 138).
Aa
White text reads best on this color (5.04:1).
About this color
#5A718A is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.048 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.014 away. White text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #5A718A |
| RGB | rgb(90, 113, 138) |
| HSL | hsl(211, 21%, 45%) |
| OKLCH | oklch(54% 0.048 250.8) |
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 #5A718A | 5.04:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #5A718A | 4.16:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #5A718A text on white | 5.04:1 | AA | Lc 74.8 | Content text, not long reading |
| #5A718A text on black | 4.16:1 | AA large text | Lc -26.9 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#91A3B6
oklch(70.8% 0.034 249.7)
-
Step 500
500
#768CA4
oklch(63.1% 0.044 250.8)
-
Step 600
600 (this color)
#5A718A
oklch(54% 0.048 250.8)
-
Step 700
700
#4E637A
oklch(49.2% 0.045 251)
-
Step 800
800
#405163
oklch(42.8% 0.037 250.2)
-
Step 900
900
#364351
oklch(37.7% 0.029 250.5)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#5A718A 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) | #68728B | 0.020 |
| Deuteranopia (no green cones) | #626D89 | 0.015 |
| Tritanopia (no blue cones) | #4B7779 | 0.042 |
| Achromatopsia (no color) | #6F6F6F | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A718A
#5A718A
oklch(54% 0.048 250.8)
- #816A50
#816A50
oklch(54% 0.048 70)
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 #5A718A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.014
- Dull Blue #49759C ΔE 0.032
- Stormy Blue #507B9C ΔE 0.035
- Battleship Gray #6C757D ΔE 0.036
- Grey Blue #647D8E ΔE 0.039
- Cerulean #457B9D ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.044
- Muted Blue #3B719F ΔE 0.046
Use #5A718A 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.