#207DBD
Closest named color: Windows Blue (#3778BF). oklch(56.9% 0.129 244.6), rgb(32, 125, 189).
Aa
Black text reads best on this color (4.72:1).
About this color
#207DBD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.129 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.019 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #207DBD |
| RGB | rgb(32, 125, 189) |
| HSL | hsl(204, 71%, 43%) |
| OKLCH | oklch(56.9% 0.129 244.6) |
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 #207DBD | 4.44:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #207DBD | 4.72:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #207DBD text on white | 4.44:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #207DBD text on black | 4.72:1 | AA | Lc -31.3 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A2C5E4
oklch(80.8% 0.058 245.3)
-
Step 400
400
#6DA7D7
oklch(70.7% 0.093 244.6)
-
Step 500
500
#4290CC
oklch(63.1% 0.119 244.6)
-
Step 600
600 (this color)
#207DBD
oklch(56.9% 0.129 244.6)
-
Step 700
700
#07669F
oklch(49.2% 0.119 244.2)
-
Step 800
800
#0E5381
oklch(42.7% 0.099 244.6)
-
Step 900
900
#164568
oklch(37.7% 0.078 244.8)
-
Step 950
950
#0F293D
oklch(27.1% 0.049 244.3)
#207DBD 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) | #5F7FC0 | 0.055 |
| Deuteranopia (no green cones) | #4971BC | 0.041 |
| Tritanopia (no blue cones) | #008D94 | 0.091 |
| Achromatopsia (no color) | #787878 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #207DBD
#207DBD
oklch(56.9% 0.129 244.6)
- #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 #207DBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.019
- Nice Blue #107AB0 ΔE 0.023
- Water Blue #0E87CC ΔE 0.032
- Steel Blue #4682B4 ΔE 0.035
- Cool Blue #4984B8 ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.039
- Blue NCS #118AB2 ΔE 0.045
- Muted Blue #3B719F ΔE 0.052
Use #207DBD 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.