#5399BD
Closest named color: Faded Blue (#658CBB). oklch(65.2% 0.089 232.8), rgb(83, 153, 189).
Aa
Black text reads best on this color (6.65:1).
About this color
#5399BD is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.089 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.038 away. Black text reads best on it, at 6.65:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #5399BD |
| RGB | rgb(83, 153, 189) |
| HSL | hsl(200, 45%, 53%) |
| OKLCH | oklch(65.2% 0.089 232.8) |
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 #5399BD | 3.15:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #5399BD | 6.65:1 | AA | Lc 45.6 | Large or bold text, headings |
| #5399BD text on white | 3.15:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #5399BD text on black | 6.65:1 | AA | Lc -43.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A6C6D8
oklch(80.9% 0.043 232.7)
-
Step 400
400
#74A9C5
oklch(70.8% 0.069 232.1)
-
Step 500
500 (this color)
#5399BD
oklch(65.2% 0.089 232.8)
-
Step 600
600
#2B7CA2
oklch(55.5% 0.096 232.9)
-
Step 700
700
#1D698B
oklch(49.2% 0.089 232.6)
-
Step 800
800
#1B5671
oklch(42.8% 0.074 232.3)
-
Step 900
900
#1D475B
oklch(37.8% 0.058 231.8)
-
Step 950
950
#122935
oklch(26.8% 0.037 233.2)
#5399BD 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) | #8797BF | 0.058 |
| Deuteranopia (no green cones) | #798CBC | 0.051 |
| Tritanopia (no blue cones) | #00A3A5 | 0.066 |
| Achromatopsia (no color) | #919191 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5399BD
#5399BD
oklch(65.2% 0.089 232.8)
- #BB805B
#BB805B
oklch(65.1% 0.09 52.6)
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 #5399BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.038
- Greyblue #77A1B5 ΔE 0.049
- Silver Lake Blue #778DA9 ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.053
- Off Blue #5684AE ΔE 0.058
- Cool Blue #4984B8 ΔE 0.062
Use #5399BD 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.