#6288D2
Closest named color: Dark Sky Blue (#448EE4). oklch(63.1% 0.12 262.8), rgb(98, 136, 210).
Aa
Black text reads best on this color (5.97:1).
About this color
#6288D2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.120 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.037 away. Black text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.97:1 |
| White text | 3.51:1 |
Values
| HEX | #6288D2 |
| RGB | rgb(98, 136, 210) |
| HSL | hsl(220, 55%, 60%) |
| OKLCH | oklch(63.1% 0.12 262.8) |
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 #6288D2 | 3.51:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #6288D2 | 5.97:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #6288D2 text on white | 3.51:1 | AA large text | Lc 62.6 | Content text, not long reading |
| #6288D2 text on black | 5.97:1 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ADC1E7
oklch(80.9% 0.058 263.2)
-
Step 400
400
#81A0DC
oklch(70.6% 0.095 263.1)
-
Step 500
500 (this color)
#6288D2
oklch(63.1% 0.12 262.8)
-
Step 600
600
#4970BF
oklch(55.5% 0.131 263)
-
Step 700
700
#3A5EA5
oklch(49.1% 0.121 262.5)
-
Step 800
800
#304D86
oklch(42.7% 0.101 262.6)
-
Step 900
900
#2B406B
oklch(37.6% 0.079 263.4)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#6288D2 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) | #6B8ED5 | 0.021 |
| Deuteranopia (no green cones) | #5D84D0 | 0.013 |
| Tritanopia (no blue cones) | #2698A3 | 0.107 |
| Achromatopsia (no color) | #898989 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6288D2
#6288D2
oklch(63.1% 0.12 262.8)
- #AD821F
#AD821F
oklch(63.2% 0.12 82.9)
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 #6288D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.037
- Soft Blue #6488EA ΔE 0.037
- Faded Blue #658CBB ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.048
- Cool Blue #4984B8 ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.052
- Off Blue #5684AE ΔE 0.058
- Steel Blue #4682B4 ΔE 0.058
Use #6288D2 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.