#298BE8
Closest named color: Dark Sky Blue (#448EE4). oklch(62.9% 0.165 251.6), rgb(41, 139, 232).
Aa
Black text reads best on this color (5.95:1).
About this color
#298BE8 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.165 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.021 away. Black text reads best on it, at 5.95:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #298BE8 |
| RGB | rgb(41, 139, 232) |
| HSL | hsl(209, 81%, 54%) |
| OKLCH | oklch(62.9% 0.165 251.6) |
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 #298BE8 | 3.52:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #298BE8 | 5.95:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #298BE8 text on white | 3.52:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #298BE8 text on black | 5.95:1 | AA | Lc -39.3 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C4DCF7
oklch(88.5% 0.045 251.4)
-
Step 300
300
#9AC5F4
oklch(81% 0.081 251.1)
-
Step 400
400
#60A5EE
oklch(70.8% 0.129 251.3)
-
Step 500
500 (this color)
#298BE8
oklch(62.9% 0.165 251.6)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#054278
oklch(37.6% 0.108 251.8)
-
Step 950
950
#082746
oklch(26.9% 0.068 251.9)
#298BE8 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) | #5D92EC | 0.047 |
| Deuteranopia (no green cones) | #3D81E6 | 0.027 |
| Tritanopia (no blue cones) | #00A1AE | 0.121 |
| Achromatopsia (no color) | #888888 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #298BE8
#298BE8
oklch(62.9% 0.165 251.6)
- #BA7900
#BA7900
oklch(62.9% 0.135 72)
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 #298BE8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.021
- Dodger Blue #1E90FF ΔE 0.035
- Chefchaouen Blue #4895EF ΔE 0.037
- Water Blue #0E87CC ΔE 0.045
- Soft Blue #6488EA ΔE 0.048
- Clear Blue #247AFD ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.058
- Cool Blue #4984B8 ΔE 0.072
Use #298BE8 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.