#2C7FCF
Closest named color: Water Blue (#0E87CC). oklch(58.7% 0.146 251.2), rgb(44, 127, 207).
Aa
Black text reads best on this color (5.04:1).
About this color
#2C7FCF is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.146 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.025 away. Black text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #2C7FCF |
| RGB | rgb(44, 127, 207) |
| HSL | hsl(209, 65%, 49%) |
| OKLCH | oklch(58.7% 0.146 251.2) |
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 #2C7FCF | 4.16:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #2C7FCF | 5.04:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #2C7FCF text on white | 4.16:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #2C7FCF text on black | 5.04:1 | AA | Lc -33.4 | 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 600.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A2C4EA
oklch(80.9% 0.065 251.5)
-
Step 400
400
#6EA5E0
oklch(70.8% 0.105 251.1)
-
Step 500
500
#448DD7
oklch(63.1% 0.134 251)
-
Step 600
600 (this color)
#2C7FCF
oklch(58.7% 0.146 251.2)
-
Step 700
700
#1162AA
oklch(49.1% 0.136 251.4)
-
Step 800
800
#13508A
oklch(42.6% 0.113 251.7)
-
Step 900
900
#18436E
oklch(37.6% 0.088 251.3)
-
Step 950
950
#102840
oklch(27.1% 0.054 250.5)
#2C7FCF 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) | #5984D2 | 0.043 |
| Deuteranopia (no green cones) | #3F75CD | 0.028 |
| Tritanopia (no blue cones) | #00929D | 0.108 |
| Achromatopsia (no color) | #7C7C7C | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C7FCF
#2C7FCF
oklch(58.7% 0.146 251.2)
- #AA6D00
#AA6D00
oklch(58.6% 0.126 71.1)
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 #2C7FCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.025
- Windows Blue #3778BF ΔE 0.028
- Cool Blue #4984B8 ΔE 0.046
- Steel Blue #4682B4 ΔE 0.048
- Nice Blue #107AB0 ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.054
- Blue NCS #118AB2 ΔE 0.062
- Flat Blue #3C73A8 ΔE 0.063
Use #2C7FCF 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.