#5799BB
Closest named color: Faded Blue (#658CBB). oklch(65.3% 0.084 232.5), rgb(87, 153, 187).
Aa
Black text reads best on this color (6.67:1).
About this color
#5799BB is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.084 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 6.67:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.67:1 |
| White text | 3.14:1 |
Values
| HEX | #5799BB |
| RGB | rgb(87, 153, 187) |
| HSL | hsl(200, 42%, 54%) |
| OKLCH | oklch(65.3% 0.084 232.5) |
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 #5799BB | 3.14:1 | AA large text | Lc -63.8 | Content text, not long reading |
| Black text on #5799BB | 6.67:1 | AA | Lc 45.7 | Large or bold text, headings |
| #5799BB text on white | 3.14:1 | AA large text | Lc 58.4 | Large or bold text, headings |
| #5799BB text on black | 6.67:1 | AA | Lc -43.4 | 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
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D7
oklch(80.9% 0.041 231.9)
-
Step 400
400
#76A8C3
oklch(70.6% 0.066 232.5)
-
Step 500
500 (this color)
#5799BB
oklch(65.3% 0.084 232.5)
-
Step 600
600
#317CA0
oklch(55.6% 0.092 232.7)
-
Step 700
700
#236989
oklch(49.2% 0.085 232.2)
-
Step 800
800
#1F556F
oklch(42.6% 0.071 232.9)
-
Step 900
900
#20475A
oklch(37.8% 0.055 231.9)
-
Step 950
950
#142935
oklch(26.9% 0.035 235.2)
#5799BB 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) | #8897BD | 0.056 |
| Deuteranopia (no green cones) | #7A8DBB | 0.048 |
| Tritanopia (no blue cones) | #13A2A4 | 0.064 |
| Achromatopsia (no color) | #919191 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5799BB
#5799BB
oklch(65.3% 0.084 232.5)
- #B9815F
#B9815F
oklch(65.2% 0.084 52)
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 #5799BB, 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 0.045
- Silver Lake Blue #778DA9 ΔE 0.046
- Cadet Blue #5F9EA0 ΔE 0.048
- Blue Grey #758DA3 ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.053
- Off Blue #5684AE ΔE 0.059
- Cool Blue #4984B8 ΔE 0.063
Use #5799BB 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.