#007DC3
Closest named color: Windows Blue (#3778BF). oklch(56.8% 0.141 244.2), rgb(0, 125, 195).
Aa
Black text reads best on this color (4.72:1).
About this color
#007DC3 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.141 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.024 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #007DC3 |
| RGB | rgb(0, 125, 195) |
| HSL | hsl(202, 100%, 38%) |
| OKLCH | oklch(56.8% 0.141 244.2) |
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 #007DC3 | 4.44:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #007DC3 | 4.72:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #007DC3 text on white | 4.44:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #007DC3 text on black | 4.72:1 | AA | Lc -31.5 | 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
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9EC6E7
oklch(80.9% 0.063 243.5)
-
Step 400
400
#67A7DB
oklch(70.6% 0.101 244.4)
-
Step 500
500
#3690D2
oklch(63% 0.13 244.5)
-
Step 600
600 (this color)
#007DC3
oklch(56.8% 0.141 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#0E456B
oklch(37.7% 0.085 244.5)
-
Step 950
950
#0B293F
oklch(27.1% 0.054 244.1)
#007DC3 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) | #5B80C6 | 0.059 |
| Deuteranopia (no green cones) | #4171C2 | 0.041 |
| Tritanopia (no blue cones) | #008E97 | 0.096 |
| Achromatopsia (no color) | #777777 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #007DC3
#007DC3
oklch(56.8% 0.141 244.2)
- #AA6400
#AA6400
oklch(56.9% 0.128 64.4)
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 #007DC3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.024
- Nice Blue #107AB0 ΔE 0.029
- Water Blue #0E87CC ΔE 0.030
- Steel Blue #4682B4 ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.048
- Cool Blue #4984B8 ΔE 0.049
- Blue NCS #118AB2 ΔE 0.052
- Mid Blue #276AB3 ΔE 0.054
Use #007DC3 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.