#007DC8
Closest named color: Windows Blue (#3778BF). oklch(57.2% 0.147 245.9), rgb(0, 125, 200).
Aa
Black text reads best on this color (4.76:1).
About this color
#007DC8 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.147 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.025 away. Black text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.76:1 |
| White text | 4.40:1 |
Values
| HEX | #007DC8 |
| RGB | rgb(0, 125, 200) |
| HSL | hsl(203, 100%, 39%) |
| OKLCH | oklch(57.2% 0.147 245.9) |
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 #007DC8 | 4.40:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #007DC8 | 4.76:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #007DC8 text on white | 4.40:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #007DC8 text on black | 4.76:1 | AA | Lc -31.8 | 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 600.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300
#9EC6E9
oklch(81% 0.065 245.1)
-
Step 400
400
#66A7DF
oklch(70.7% 0.106 246)
-
Step 500
500
#3590D6
oklch(63.2% 0.135 245.8)
-
Step 600
600 (this color)
#007DC8
oklch(57.2% 0.147 245.9)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#005387
oklch(42.8% 0.11 245.8)
-
Step 900
900
#0D456D
oklch(37.8% 0.088 245.6)
-
Step 950
950
#0B2840
oklch(26.9% 0.056 247)
#007DC8 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) | #5881CB | 0.056 |
| Deuteranopia (no green cones) | #3C71C7 | 0.038 |
| Tritanopia (no blue cones) | #008F99 | 0.101 |
| Achromatopsia (no color) | #787878 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #007DC8
#007DC8
oklch(57.2% 0.147 245.9)
- #A96600
#A96600
oklch(57.2% 0.127 66.3)
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 #007DC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.025
- Water Blue #0E87CC ΔE 0.029
- Nice Blue #107AB0 ΔE 0.037
- Steel Blue #4682B4 ΔE 0.050
- Cool Blue #4984B8 ΔE 0.052
- Flat Blue #3C73A8 ΔE 0.054
- Mid Blue #276AB3 ΔE 0.056
- Blue NCS #118AB2 ΔE 0.057
Use #007DC8 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.