#2D7BBC
Closest named color: Windows Blue (#3778BF). oklch(56.7% 0.126 247.6), rgb(45, 123, 188).
Aa
Black text reads best on this color (4.67:1).
About this color
#2D7BBC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.126 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.012 away. Black text reads best on it, at 4.67:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #2D7BBC |
| RGB | rgb(45, 123, 188) |
| HSL | hsl(207, 61%, 46%) |
| OKLCH | oklch(56.7% 0.126 247.6) |
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 #2D7BBC | 4.49:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #2D7BBC | 4.67:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #2D7BBC text on white | 4.49:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #2D7BBC text on black | 4.67:1 | AA | Lc -30.8 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E4
oklch(81% 0.057 246.9)
-
Step 400
400
#72A6D6
oklch(70.7% 0.09 247.2)
-
Step 500
500
#4A8FCC
oklch(63.2% 0.116 247.5)
-
Step 600
600 (this color)
#2D7BBC
oklch(56.7% 0.126 247.6)
-
Step 700
700
#1B649F
oklch(49% 0.117 248)
-
Step 800
800
#195281
oklch(42.7% 0.097 247.7)
-
Step 900
900
#1C4467
oklch(37.6% 0.075 247.8)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#2D7BBC 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) | #5D7EBF | 0.047 |
| Deuteranopia (no green cones) | #4871BB | 0.032 |
| Tritanopia (no blue cones) | #008B93 | 0.091 |
| Achromatopsia (no color) | #777777 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D7BBC
#2D7BBC
oklch(56.7% 0.126 247.6)
- #A66600
#A66600
oklch(56.8% 0.125 67.8)
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 #2D7BBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.012
- Nice Blue #107AB0 ΔE 0.024
- Steel Blue #4682B4 ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.034
- Water Blue #0E87CC ΔE 0.037
- Cool Blue #4984B8 ΔE 0.038
- French Blue #436BAD ΔE 0.046
- Muted Blue #3B719F ΔE 0.048
Use #2D7BBC 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.