#83B5EF
Closest named color: Carolina Blue (#8AB8FE). oklch(76% 0.099 252.7), rgb(131, 181, 239).
Aa
Black text reads best on this color (9.82:1).
About this color
#83B5EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.099 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.024 away. Black text reads best on it, at 9.82:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.82:1 |
| White text | 2.13:1 |
Values
| HEX | #83B5EF |
| RGB | rgb(131, 181, 239) |
| HSL | hsl(212, 77%, 73%) |
| OKLCH | oklch(76% 0.099 252.7) |
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 #83B5EF | 2.13:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #83B5EF | 9.82:1 | AAA | Lc 62.1 | Content text, not long reading |
| #83B5EF text on white | 2.13:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #83B5EF text on black | 9.82:1 | AAA | Lc -60.4 | Content text, not long reading |
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 300.
-
Step 50
50
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DDECFD
oklch(93.7% 0.028 251.5)
-
Step 200
200
#C0DCFD
oklch(88.5% 0.055 252.7)
-
Step 300
300 (this color)
#83B5EF
oklch(76% 0.099 252.7)
-
Step 400
400
#50A4FF
oklch(70.8% 0.157 252.5)
-
Step 500
500
#0089F9
oklch(63% 0.193 252.8)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427C
oklch(37.8% 0.114 252.4)
-
Step 950
950
#00264D
oklch(26.9% 0.083 253)
#83B5EF 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) | #9EB7F2 | 0.033 |
| Deuteranopia (no green cones) | #91ADEE | 0.025 |
| Tritanopia (no blue cones) | #57C2C9 | 0.086 |
| Achromatopsia (no color) | #B1B1B1 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #83B5EF
#83B5EF
oklch(76% 0.099 252.7)
- #D8A768
#D8A768
oklch(76% 0.099 72.4)
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 #83B5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.024
- Lightblue #7BC8F6 ΔE 0.049
- Pastel Blue #A2BFFE ΔE 0.051
- Sky #82CAFC ΔE 0.055
- Light Grey Blue #9DBCD4 ΔE 0.057
- Light Cornflower Blue #98C1D9 ΔE 0.058
- Vivid Sky Blue #4CC9F0 ΔE 0.065
- Light Sky Blue #87CEFA ΔE 0.066
Use #83B5EF 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.