#2F7ABE
Closest named color: Windows Blue (#3778BF). oklch(56.6% 0.128 249.4), rgb(47, 122, 190).
Aa
Black text reads best on this color (4.64:1).
About this color
#2F7ABE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.128 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.008 away. Black text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.64:1 |
| White text | 4.51:1 |
Values
| HEX | #2F7ABE |
| RGB | rgb(47, 122, 190) |
| HSL | hsl(209, 60%, 46%) |
| OKLCH | oklch(56.6% 0.128 249.4) |
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 #2F7ABE | 4.51:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #2F7ABE | 4.64:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #2F7ABE text on white | 4.51:1 | AA | Lc 71.0 | Content text, not long reading |
| #2F7ABE text on black | 4.64:1 | AA | Lc -30.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E5
oklch(80.9% 0.058 250.2)
-
Step 400
400
#73A5D8
oklch(70.7% 0.092 249.7)
-
Step 500
500
#4C8ECE
oklch(63.1% 0.118 249.6)
-
Step 600
600 (this color)
#2F7ABE
oklch(56.6% 0.128 249.4)
-
Step 700
700
#1D64A1
oklch(49.2% 0.119 249.1)
-
Step 800
800
#1B5282
oklch(42.8% 0.098 248.8)
-
Step 900
900
#1D4469
oklch(37.8% 0.077 249.6)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#2F7ABE 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) | #5B7EC1 | 0.044 |
| Deuteranopia (no green cones) | #4670BD | 0.031 |
| Tritanopia (no blue cones) | #008A93 | 0.094 |
| Achromatopsia (no color) | #767676 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F7ABE
#2F7ABE
oklch(56.6% 0.128 249.4)
- #A46700
#A46700
oklch(56.7% 0.123 69.5)
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 #2F7ABE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.008
- Nice Blue #107AB0 ΔE 0.028
- Flat Blue #3C73A8 ΔE 0.036
- Steel Blue #4682B4 ΔE 0.037
- Water Blue #0E87CC ΔE 0.038
- Cool Blue #4984B8 ΔE 0.041
- French Blue #436BAD ΔE 0.045
- Mid Blue #276AB3 ΔE 0.047
Use #2F7ABE 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.