#13B2EB
Closest named color: Deep Sky Blue (#00BFFF). oklch(71.6% 0.141 230.8), rgb(19, 178, 235).
Aa
Black text reads best on this color (8.59:1).
About this color
#13B2EB is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.141 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.041 away. Black text reads best on it, at 8.59:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.59:1 |
| White text | 2.44:1 |
Values
| HEX | #13B2EB |
| RGB | rgb(19, 178, 235) |
| HSL | hsl(196, 85%, 50%) |
| OKLCH | oklch(71.6% 0.141 230.8) |
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 #13B2EB | 2.44:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #13B2EB | 8.59:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #13B2EB text on white | 2.44:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #13B2EB text on black | 8.59:1 | AAA | Lc -54.6 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DAEDF8
oklch(93.5% 0.025 233)
-
Step 200
200
#B9E0F4
oklch(88.5% 0.049 230.3)
-
Step 300
300
#83CBEF
oklch(80.8% 0.088 231)
-
Step 400
400 (this color)
#13B2EB
oklch(71.6% 0.141 230.8)
-
Step 500
500
#0096C8
oklch(63.1% 0.127 231)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#13B2EB 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) | #95B0EE | 0.095 |
| Deuteranopia (no green cones) | #7A9EEA | 0.079 |
| Tritanopia (no blue cones) | #00C2C5 | 0.083 |
| Achromatopsia (no color) | #A6A6A6 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13B2EB
#13B2EB
oklch(71.6% 0.141 230.8)
- #E8874A
#E8874A
oklch(71.7% 0.141 50.9)
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 #13B2EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.041
- Turquoise Blue #06B1C4 ΔE 0.059
- Bright Sky Blue #02CCFE ΔE 0.071
- Vivid Sky Blue #4CC9F0 ΔE 0.072
- Chefchaouen Blue #4895EF ΔE 0.081
- Cornflower Blue #6495ED ΔE 0.085
- Carolina Blue #8AB8FE ΔE 0.090
- Greyblue #77A1B5 ΔE 0.092
Use #13B2EB 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.