#5983A3
Closest named color: Dusty Blue (#5A86AD). oklch(59.2% 0.068 242.1), rgb(89, 131, 163).
Aa
Black text reads best on this color (5.20:1).
About this color
#5983A3 is a medium-dark, muted blue. In OKLCH its lightness is 59%, its chroma 0.068 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.016 away. Black text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.20:1 |
| White text | 4.03:1 |
Values
| HEX | #5983A3 |
| RGB | rgb(89, 131, 163) |
| HSL | hsl(206, 29%, 49%) |
| OKLCH | oklch(59.2% 0.068 242.1) |
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 #5983A3 | 4.03:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #5983A3 | 5.20:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #5983A3 text on white | 4.03:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #5983A3 text on black | 5.20:1 | AA | Lc -34.1 | 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
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B0C4D3
oklch(81% 0.03 240.3)
-
Step 400
400
#86A5BD
oklch(70.7% 0.049 241.7)
-
Step 500
500
#688EAC
oklch(63% 0.062 242.7)
-
Step 600
600 (this color)
#5983A3
oklch(59.2% 0.068 242.1)
-
Step 700
700
#3F6582
oklch(49.1% 0.064 242.5)
-
Step 800
800
#355369
oklch(42.8% 0.051 241.2)
-
Step 900
900
#2E4456
oklch(37.6% 0.041 243.9)
-
Step 950
950
#1B2832
oklch(27% 0.026 242)
#5983A3 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) | #7583A5 | 0.035 |
| Deuteranopia (no green cones) | #6C7BA2 | 0.030 |
| Tritanopia (no blue cones) | #3A8B8E | 0.055 |
| Achromatopsia (no color) | #7E7E7E | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5983A3
#5983A3
oklch(59.2% 0.068 242.1)
- #9B7553
#9B7553
oklch(59.2% 0.068 62.8)
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 #5983A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.016
- Off Blue #5684AE ΔE 0.017
- Stormy Blue #507B9C ΔE 0.027
- Steel Blue #4682B4 ΔE 0.032
- Grey Blue #647D8E ΔE 0.033
- Cerulean #457B9D ΔE 0.034
- Cool Blue #4984B8 ΔE 0.034
- Slate Gray #708090 ΔE 0.037
Use #5983A3 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.