#2593D0
Closest named color: Water Blue (#0E87CC). oklch(63.2% 0.131 239.2), rgb(37, 147, 208).
Aa
Black text reads best on this color (6.16:1).
About this color
#2593D0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.131 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.036 away. Black text reads best on it, at 6.16:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 6.16:1 |
| White text | 3.40:1 |
Values
| HEX | #2593D0 |
| RGB | rgb(37, 147, 208) |
| HSL | hsl(201, 70%, 48%) |
| OKLCH | oklch(63.2% 0.131 239.2) |
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 #2593D0 | 3.40:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #2593D0 | 6.16:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #2593D0 text on white | 3.40:1 | AA large text | Lc 61.1 | Content text, not long reading |
| #2593D0 text on black | 6.16:1 | AA | Lc -40.6 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C5DDEF
oklch(88.5% 0.036 240.3)
-
Step 300
300
#9BC7E6
oklch(80.9% 0.064 239.3)
-
Step 400
400
#5FA9DA
oklch(70.6% 0.103 239.5)
-
Step 500
500 (this color)
#2593D0
oklch(63.2% 0.131 239.2)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00476A
oklch(37.9% 0.085 239)
-
Step 950
950
#062A3E
oklch(27.1% 0.054 238.2)
#2593D0 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) | #7694D3 | 0.069 |
| Deuteranopia (no green cones) | #5F84CF | 0.055 |
| Tritanopia (no blue cones) | #00A2A8 | 0.086 |
| Achromatopsia (no color) | #8B8B8B | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2593D0
#2593D0
oklch(63.2% 0.131 239.2)
- #C37429
#C37429
oklch(63.3% 0.131 59.5)
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 #2593D0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.041
- Cool Blue #4984B8 ΔE 0.050
- Blue NCS #118AB2 ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.054
- Faded Blue #658CBB ΔE 0.054
- Steel Blue #4682B4 ΔE 0.056
- Off Blue #5684AE ΔE 0.062
Use #2593D0 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.