#5F7688
Closest named color: Grey Blue (#647D8E). oklch(55.4% 0.039 242), rgb(95, 118, 136).
Aa
White text reads best on this color (4.73:1).
About this color
#5F7688 is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.039 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.022 away. White text reads best on it, at 4.73:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #5F7688 |
| RGB | rgb(95, 118, 136) |
| HSL | hsl(206, 18%, 45%) |
| OKLCH | oklch(55.4% 0.039 242) |
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 #5F7688 | 4.73:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #5F7688 | 4.43:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #5F7688 text on white | 4.73:1 | AA | Lc 72.9 | Content text, not long reading |
| #5F7688 text on black | 4.43:1 | AA large text | Lc -28.8 | 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
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DADF
oklch(88.5% 0.009 242.9)
-
Step 300
300
#B7C2CB
oklch(80.8% 0.018 242.5)
-
Step 400
400
#92A3B1
oklch(70.7% 0.028 242.9)
-
Step 500
500
#778D9E
oklch(63.2% 0.036 241.4)
-
Step 600
600 (this color)
#5F7688
oklch(55.4% 0.039 242)
-
Step 700
700
#4F6474
oklch(49.2% 0.036 241.3)
-
Step 800
800
#41515E
oklch(42.6% 0.03 243)
-
Step 900
900
#37434D
oklch(37.6% 0.023 243.5)
-
Step 950
950
#20272D
oklch(26.8% 0.015 244.2)
#5F7688 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) | #6F7689 | 0.022 |
| Deuteranopia (no green cones) | #697188 | 0.019 |
| Tritanopia (no blue cones) | #537A7C | 0.030 |
| Achromatopsia (no color) | #737373 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F7688
#5F7688
oklch(55.4% 0.039 242)
- #846E5C
#846E5C
oklch(55.4% 0.039 61.2)
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 #5F7688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.022
- Battleship Gray #6C757D ΔE 0.023
- Metallic Blue #4F738E ΔE 0.025
- Battleship Grey #6B7C85 ΔE 0.027
- Stormy Blue #507B9C ΔE 0.033
- Slate Gray #708090 ΔE 0.039
- Cerulean #457B9D ΔE 0.040
- Dull Blue #49759C ΔE 0.040
Use #5F7688 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.