#488EEF
Closest named color: Dark Sky Blue (#448EE4). oklch(64.8% 0.162 257.1), rgb(72, 142, 239).
Aa
Black text reads best on this color (6.39:1).
About this color
#488EEF is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.162 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.017 away. Black text reads best on it, at 6.39:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #488EEF |
| RGB | rgb(72, 142, 239) |
| HSL | hsl(215, 84%, 61%) |
| OKLCH | oklch(64.8% 0.162 257.1) |
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 #488EEF | 3.28:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #488EEF | 6.39:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #488EEF text on white | 3.28:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #488EEF text on black | 6.39:1 | AA | Lc -41.8 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A0C3F4
oklch(80.9% 0.079 256.8)
-
Step 400
400
#6CA2EE
oklch(70.7% 0.126 257.1)
-
Step 500
500 (this color)
#488EEF
oklch(64.8% 0.162 257.1)
-
Step 600
600
#2070D7
oklch(55.6% 0.175 257.1)
-
Step 700
700
#115DBB
oklch(49.1% 0.164 257.2)
-
Step 800
800
#134C97
oklch(42.6% 0.136 257.4)
-
Step 900
900
#174078
oklch(37.6% 0.106 257.3)
-
Step 950
950
#0F2646
oklch(26.9% 0.066 257.2)
#488EEF 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) | #6096F3 | 0.033 |
| Deuteranopia (no green cones) | #4587ED | 0.019 |
| Tritanopia (no blue cones) | #00A5B3 | 0.128 |
| Achromatopsia (no color) | #8E8E8E | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #488EEF
#488EEF
oklch(64.8% 0.162 257.1)
- #BC8200
#BC8200
oklch(64.9% 0.136 77.3)
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 #488EEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.017
- Chefchaouen Blue #4895EF ΔE 0.019
- Soft Blue #6488EA ΔE 0.029
- Dodger Blue #1E90FF ΔE 0.031
- Cornflower Blue #6495ED ΔE 0.035
- Cornflower #6A79F7 ΔE 0.062
- Clear Blue #247AFD ΔE 0.066
- Water Blue #0E87CC ΔE 0.066
Use #488EEF 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.