#5A798C
Closest named color: Grey Blue (#647D8E). oklch(55.9% 0.046 235.6), rgb(90, 121, 140).
Aa
White text reads best on this color (4.61:1).
About this color
#5A798C is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.046 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.018 away. White text reads best on it, at 4.61:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.54:1 |
| White text | 4.61:1 |
Values
| HEX | #5A798C |
| RGB | rgb(90, 121, 140) |
| HSL | hsl(203, 22%, 45%) |
| OKLCH | oklch(55.9% 0.046 235.6) |
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 #5A798C | 4.61:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #5A798C | 4.54:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #5A798C text on white | 4.61:1 | AA | Lc 72.0 | Content text, not long reading |
| #5A798C text on black | 4.54:1 | AA | Lc -29.6 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B4C3CC
oklch(80.8% 0.021 233.9)
-
Step 400
400
#8DA4B3
oklch(70.6% 0.034 236.6)
-
Step 500
500
#718EA0
oklch(63.1% 0.043 235.6)
-
Step 600
600 (this color)
#5A798C
oklch(55.9% 0.046 235.6)
-
Step 700
700
#496576
oklch(49.1% 0.043 235.4)
-
Step 800
800
#3C5260
oklch(42.6% 0.036 236.6)
-
Step 900
900
#33444E
oklch(37.6% 0.028 234.3)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#5A798C 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) | #70788D | 0.029 |
| Deuteranopia (no green cones) | #69728C | 0.027 |
| Tritanopia (no blue cones) | #497E7F | 0.035 |
| Achromatopsia (no color) | #757575 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A798C
#5A798C
oklch(55.9% 0.046 235.6)
- #8A6E5A
#8A6E5A
oklch(56% 0.046 57.1)
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 #5A798C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.018
- Metallic Blue #4F738E ΔE 0.025
- Stormy Blue #507B9C ΔE 0.025
- Battleship Grey #6B7C85 ΔE 0.027
- Battleship Gray #6C757D ΔE 0.030
- Cerulean #457B9D ΔE 0.032
- Dull Blue #49759C ΔE 0.036
- Slate Gray #708090 ΔE 0.037
Use #5A798C 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.