#2684EB
Closest named color: Dark Sky Blue (#448EE4). oklch(61.4% 0.177 254.4), rgb(38, 132, 235).
Aa
Black text reads best on this color (5.58:1).
About this color
#2684EB is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.177 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.038 away. Black text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.58:1 |
| White text | 3.76:1 |
Values
| HEX | #2684EB |
| RGB | rgb(38, 132, 235) |
| HSL | hsl(211, 83%, 54%) |
| OKLCH | oklch(61.4% 0.177 254.4) |
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 #2684EB | 3.76:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #2684EB | 5.58:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #2684EB text on white | 3.76:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #2684EB text on black | 5.58:1 | AA | Lc -37.0 | 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
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C4DBF9
oklch(88.4% 0.048 255.1)
-
Step 300
300
#9AC4F8
oklch(80.9% 0.087 254.1)
-
Step 400
400
#60A3F5
oklch(70.7% 0.139 254.5)
-
Step 500
500 (this color)
#2684EB
oklch(61.4% 0.177 254.4)
-
Step 600
600
#0071D8
oklch(55.5% 0.179 254.5)
-
Step 700
700
#005FB7
oklch(49.1% 0.158 254.4)
-
Step 800
800
#004E98
oklch(42.8% 0.138 254.3)
-
Step 900
900
#07417D
oklch(37.8% 0.116 254.5)
-
Step 950
950
#082649
oklch(26.9% 0.074 254.8)
#2684EB 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) | #4E8DEF | 0.040 |
| Deuteranopia (no green cones) | #227CE9 | 0.022 |
| Tritanopia (no blue cones) | #009DAC | 0.133 |
| Achromatopsia (no color) | #848484 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2684EB
#2684EB
oklch(61.4% 0.177 254.4)
- #B27700
#B27700
oklch(61.5% 0.13 74.5)
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 #2684EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.038
- Clear Blue #247AFD ΔE 0.039
- Dodger Blue #1E90FF ΔE 0.040
- Water Blue #0E87CC ΔE 0.051
- Soft Blue #6488EA ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.054
- Cerulean Blue #056EEE ΔE 0.061
- Cornflower #6A79F7 ΔE 0.066
Use #2684EB 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.