#5399BE
Closest named color: Faded Blue (#658CBB). oklch(65.2% 0.09 233.5), rgb(83, 153, 190).
Aa
Black text reads best on this color (6.66:1).
About this color
#5399BE is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.090 and its hue 234°. 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 6.66:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.66:1 |
| White text | 3.14:1 |
Values
| HEX | #5399BE |
| RGB | rgb(83, 153, 190) |
| HSL | hsl(201, 45%, 54%) |
| OKLCH | oklch(65.2% 0.09 233.5) |
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 #5399BE | 3.14:1 | AA large text | Lc -63.8 | Content text, not long reading |
| Black text on #5399BE | 6.66:1 | AA | Lc 45.6 | Large or bold text, headings |
| #5399BE text on white | 3.14:1 | AA large text | Lc 58.4 | Large or bold text, headings |
| #5399BE text on black | 6.66:1 | 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
#A6C6D9
oklch(80.9% 0.044 234.1)
-
Step 400
400
#74A8C6
oklch(70.6% 0.07 234.4)
-
Step 500
500 (this color)
#5399BE
oklch(65.2% 0.09 233.5)
-
Step 600
600
#2B7CA3
oklch(55.5% 0.097 233.6)
-
Step 700
700
#1C698C
oklch(49.2% 0.091 233.2)
-
Step 800
800
#1B5572
oklch(42.6% 0.076 234.6)
-
Step 900
900
#1D475C
oklch(37.8% 0.059 233.1)
-
Step 950
950
#122936
oklch(26.9% 0.038 235.3)
#5399BE 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) | #8797C0 | 0.058 |
| Deuteranopia (no green cones) | #788CBD | 0.050 |
| Tritanopia (no blue cones) | #00A3A5 | 0.067 |
| Achromatopsia (no color) | #919191 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5399BE
#5399BE
oklch(65.2% 0.09 233.5)
- #BB805A
#BB805A
oklch(65.1% 0.09 53.3)
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 #5399BE, 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 0.050
- Blue Grey #758DA3 ΔE 0.052
- Cadet Blue #5F9EA0 ΔE 0.053
- Dusty Blue #5A86AD ΔE 0.053
- Off Blue #5684AE ΔE 0.059
- Cool Blue #4984B8 ΔE 0.061
Use #5399BE 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.