#5B8DCF
Closest named color: Faded Blue (#658CBB). oklch(63.7% 0.114 255.8), rgb(91, 141, 207).
Aa
Black text reads best on this color (6.15:1).
About this color
#5B8DCF is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.114 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.031 away. Black text reads best on it, at 6.15:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #5B8DCF |
| RGB | rgb(91, 141, 207) |
| HSL | hsl(214, 55%, 58%) |
| OKLCH | oklch(63.7% 0.114 255.8) |
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 #5B8DCF | 3.41:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #5B8DCF | 6.15:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #5B8DCF text on white | 3.41:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #5B8DCF text on black | 6.15:1 | AA | Lc -40.2 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDBEE
oklch(88.6% 0.031 254.3)
-
Step 300
300
#A9C3E5
oklch(80.9% 0.056 255.2)
-
Step 400
400
#7CA3D8
oklch(70.7% 0.089 256.2)
-
Step 500
500 (this color)
#5B8DCF
oklch(63.7% 0.114 255.8)
-
Step 600
600
#3E74BA
oklch(55.6% 0.124 255.8)
-
Step 700
700
#3061A0
oklch(49% 0.115 255.7)
-
Step 800
800
#295082
oklch(42.8% 0.095 255.6)
-
Step 900
900
#254268
oklch(37.6% 0.074 255.8)
-
Step 950
950
#16273D
oklch(27% 0.047 255.4)
#5B8DCF 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) | #7291D2 | 0.030 |
| Deuteranopia (no green cones) | #6386CE | 0.020 |
| Tritanopia (no blue cones) | #009CA5 | 0.100 |
| Achromatopsia (no color) | #8B8B8B | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8DCF
#5B8DCF
oklch(63.7% 0.114 255.8)
- #B2812F
#B2812F
oklch(63.7% 0.114 76.6)
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 #5B8DCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.031
- Dark Sky Blue #448EE4 ΔE 0.036
- Cool Blue #4984B8 ΔE 0.046
- Soft Blue #6488EA ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.048
- Chefchaouen Blue #4895EF ΔE 0.049
- Dusty Blue #5A86AD ΔE 0.052
- Off Blue #5684AE ΔE 0.053
Use #5B8DCF 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.