#55798B
Closest named color: Metallic Blue (#4F738E). oklch(55.6% 0.049 230.4), rgb(85, 121, 139).
Aa
White text reads best on this color (4.67:1).
About this color
#55798B is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.049 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.022 away. White text reads best on it, at 4.67:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #55798B |
| RGB | rgb(85, 121, 139) |
| HSL | hsl(200, 24%, 44%) |
| OKLCH | oklch(55.6% 0.049 230.4) |
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 #55798B | 4.67:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #55798B | 4.49:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #55798B text on white | 4.67:1 | AA | Lc 72.4 | Content text, not long reading |
| #55798B text on black | 4.49:1 | AA large text | Lc -29.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B3C4CC
oklch(81% 0.022 227.6)
-
Step 400
400
#8BA5B3
oklch(70.7% 0.035 231.5)
-
Step 500
500
#6E8FA0
oklch(63.1% 0.045 230.7)
-
Step 600
600 (this color)
#55798B
oklch(55.6% 0.049 230.4)
-
Step 700
700
#456676
oklch(49.1% 0.046 229.8)
-
Step 800
800
#395360
oklch(42.7% 0.038 230.4)
-
Step 900
900
#31454F
oklch(37.8% 0.03 230.2)
-
Step 950
950
#1D282E
oklch(26.9% 0.019 232.2)
#55798B 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) | #70788C | 0.035 |
| Deuteranopia (no green cones) | #68718B | 0.032 |
| Tritanopia (no blue cones) | #417E7F | 0.035 |
| Achromatopsia (no color) | #747474 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55798B
#55798B
oklch(55.6% 0.049 230.4)
- #8B6B59
#8B6B59
oklch(55.5% 0.049 50.7)
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 #55798B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.022
- Grey Blue #647D8E ΔE 0.024
- Stormy Blue #507B9C ΔE 0.026
- Cerulean #457B9D ΔE 0.030
- Battleship Grey #6B7C85 ΔE 0.032
- Battleship Gray #6C757D ΔE 0.034
- Dull Blue #49759C ΔE 0.035
- Slate Gray #708090 ΔE 0.043
Use #55798B 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.