#5A809B
Closest named color: Stormy Blue (#507B9C). oklch(58.2% 0.06 240), rgb(90, 128, 155).
Aa
Black text reads best on this color (4.99:1).
About this color
#5A809B is a medium-dark, muted blue. In OKLCH its lightness is 58%, its chroma 0.060 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.020 away. Black text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #5A809B |
| RGB | rgb(90, 128, 155) |
| HSL | hsl(205, 27%, 48%) |
| OKLCH | oklch(58.2% 0.06 240) |
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 #5A809B | 4.20:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #5A809B | 4.99:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #5A809B text on white | 4.20:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #5A809B text on black | 4.99:1 | AA | Lc -32.7 | Non-text elements, placeholder text |
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
#D1DBE2
oklch(88.6% 0.015 238)
-
Step 300
300
#B2C3D1
oklch(80.9% 0.027 242.8)
-
Step 400
400
#89A5B9
oklch(70.8% 0.043 239.3)
-
Step 500
500
#6B8EA8
oklch(63% 0.055 240.9)
-
Step 600
600 (this color)
#5A809B
oklch(58.2% 0.06 240)
-
Step 700
700
#43657D
oklch(49.1% 0.055 240.1)
-
Step 800
800
#375366
oklch(42.8% 0.046 238.9)
-
Step 900
900
#304453
oklch(37.6% 0.036 241.3)
-
Step 950
950
#1C2831
oklch(27% 0.024 241.1)
#5A809B 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) | #747F9C | 0.033 |
| Deuteranopia (no green cones) | #6C789B | 0.031 |
| Tritanopia (no blue cones) | #418789 | 0.048 |
| Achromatopsia (no color) | #7B7B7B | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A809B
#5A809B
oklch(58.2% 0.06 240)
- #967357
#967357
oklch(58.3% 0.06 59.9)
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 #5A809B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.020
- Grey Blue #647D8E ΔE 0.021
- Off Blue #5684AE ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.029
- Cerulean #457B9D ΔE 0.029
- Slate Gray #708090 ΔE 0.031
- Battleship Grey #6B7C85 ΔE 0.036
- Steel Grey #6F828A ΔE 0.038
Use #5A809B 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.