#5B83AF
Closest named color: Off Blue (#5684AE). oklch(59.9% 0.081 251.6), rgb(91, 131, 175).
Aa
Black text reads best on this color (5.31:1).
About this color
#5B83AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.081 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.006 away. Black text reads best on it, at 5.31:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #5B83AF |
| RGB | rgb(91, 131, 175) |
| HSL | hsl(211, 34%, 52%) |
| OKLCH | oklch(59.9% 0.081 251.6) |
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 #5B83AF | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #5B83AF | 5.31:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #5B83AF text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #5B83AF text on black | 5.31:1 | AA | Lc -34.8 | 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 500.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AFC3DA
oklch(80.9% 0.039 252)
-
Step 400
400
#84A4C8
oklch(70.8% 0.064 251.7)
-
Step 500
500 (this color)
#5B83AF
oklch(59.9% 0.081 251.6)
-
Step 600
600
#4B76A5
oklch(55.5% 0.088 251.7)
-
Step 700
700
#3C638E
oklch(49% 0.082 252)
-
Step 800
800
#325173
oklch(42.7% 0.068 251.8)
-
Step 900
900
#2C435D
oklch(37.6% 0.053 252.2)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#5B83AF 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) | #7285B1 | 0.030 |
| Deuteranopia (no green cones) | #677CAE | 0.023 |
| Tritanopia (no blue cones) | #368D92 | 0.070 |
| Achromatopsia (no color) | #808080 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B83AF
#5B83AF
oklch(59.9% 0.081 251.6)
- #9E7847
#9E7847
oklch(59.9% 0.081 72.3)
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 #5B83AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.006
- Dusty Blue #5A86AD ΔE 0.010
- Cool Blue #4984B8 ΔE 0.021
- Steel Blue #4682B4 ΔE 0.023
- Faded Blue #658CBB ΔE 0.032
- Stormy Blue #507B9C ΔE 0.037
- Cerulean #457B9D ΔE 0.043
- Grey Blue #647D8E ΔE 0.049
Use #5B83AF 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.