#028EDA
Closest named color: Water Blue (#0E87CC). oklch(62.2% 0.151 243.5), rgb(2, 142, 218).
Aa
Black text reads best on this color (5.88:1).
About this color
#028EDA is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.151 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.026 away. Black text reads best on it, at 5.88:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.88:1 |
| White text | 3.56:1 |
Values
| HEX | #028EDA |
| RGB | rgb(2, 142, 218) |
| HSL | hsl(201, 98%, 43%) |
| OKLCH | oklch(62.2% 0.151 243.5) |
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 #028EDA | 3.56:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #028EDA | 5.88:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #028EDA text on white | 3.56:1 | AA large text | Lc 62.6 | Content text, not long reading |
| #028EDA text on black | 5.88:1 | AA | Lc -39.1 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF3
oklch(88.5% 0.041 243.7)
-
Step 300
300
#97C7ED
oklch(80.9% 0.074 242.6)
-
Step 400
400
#59A8E5
oklch(70.7% 0.119 244)
-
Step 500
500 (this color)
#028EDA
oklch(62.2% 0.151 243.5)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#032942
oklch(27% 0.062 243.1)
#028EDA 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) | #6991DD | 0.066 |
| Deuteranopia (no green cones) | #4C80D9 | 0.047 |
| Tritanopia (no blue cones) | #00A1AA | 0.103 |
| Achromatopsia (no color) | #878787 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028EDA
#028EDA
oklch(62.2% 0.151 243.5)
- #C17100
#C17100
oklch(62.3% 0.141 63.6)
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 #028EDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.026
- Dark Sky Blue #448EE4 ΔE 0.033
- Chefchaouen Blue #4895EF ΔE 0.050
- Dodger Blue #1E90FF ΔE 0.057
- Cool Blue #4984B8 ΔE 0.057
- Blue NCS #118AB2 ΔE 0.061
- Steel Blue #4682B4 ΔE 0.062
- Windows Blue #3778BF ΔE 0.066
Use #028EDA 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.