#5BABDB
Closest named color: Greyblue (#77A1B5). oklch(71% 0.105 237.1), rgb(91, 171, 219).
Aa
Black text reads best on this color (8.29:1).
About this color
#5BABDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.105 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.058 away. Black text reads best on it, at 8.29:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.29:1 |
| White text | 2.53:1 |
Values
| HEX | #5BABDB |
| RGB | rgb(91, 171, 219) |
| HSL | hsl(203, 64%, 61%) |
| OKLCH | oklch(71% 0.105 237.1) |
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 #5BABDB | 2.53:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #5BABDB | 8.29:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #5BABDB text on white | 2.53:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #5BABDB text on black | 8.29:1 | AAA | Lc -52.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C3DDEF
oklch(88.4% 0.037 238.1)
-
Step 300
300
#99C8E6
oklch(81% 0.065 236.6)
-
Step 400
400 (this color)
#5BABDB
oklch(71% 0.105 237.1)
-
Step 500
500
#1094D0
oklch(63.2% 0.134 236.9)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#032A3E
oklch(27% 0.056 236.7)
#5BABDB 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) | #95AADD | 0.063 |
| Deuteranopia (no green cones) | #839DDA | 0.052 |
| Tritanopia (no blue cones) | #00B7BB | 0.078 |
| Achromatopsia (no color) | #A3A3A3 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BABDB
#5BABDB
oklch(71% 0.105 237.1)
- #D3905D
#D3905D
oklch(70.9% 0.105 57.3)
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 #5BABDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.058
- Turquoise Blue #06B1C4 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.067
- Deep Sky Blue #00BFFF ΔE 0.067
- Cornflower Blue #6495ED ΔE 0.072
- Bluey Grey #89A0B0 ΔE 0.072
- Chefchaouen Blue #4895EF ΔE 0.077
- Carolina Blue #8AB8FE ΔE 0.079
Use #5BABDB 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.