#2F7CAA
Closest named color: Nice Blue (#107AB0). oklch(56% 0.103 238.9), rgb(47, 124, 170).
Aa
Black text reads best on this color (4.58:1).
About this color
#2F7CAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.103 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.019 away. Black text reads best on it, at 4.58:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #2F7CAA |
| RGB | rgb(47, 124, 170) |
| HSL | hsl(202, 57%, 43%) |
| OKLCH | oklch(56% 0.103 238.9) |
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 #2F7CAA | 4.58:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #2F7CAA | 4.58:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #2F7CAA text on white | 4.58:1 | AA | Lc 71.5 | Content text, not long reading |
| #2F7CAA text on black | 4.58:1 | AA | Lc -30.2 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE9
oklch(88.5% 0.026 239.1)
-
Step 300
300
#A6C5DC
oklch(80.8% 0.047 240.3)
-
Step 400
400
#75A7CA
oklch(70.6% 0.074 239.7)
-
Step 500
500
#4E91BD
oklch(63.1% 0.095 239.5)
-
Step 600
600 (this color)
#2F7CAA
oklch(56% 0.103 238.9)
-
Step 700
700
#1F6791
oklch(49% 0.096 239.3)
-
Step 800
800
#1D5475
oklch(42.6% 0.079 239.1)
-
Step 900
900
#1E465F
oklch(37.7% 0.062 238.9)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#2F7CAA 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) | #667CAC | 0.055 |
| Deuteranopia (no green cones) | #5670A9 | 0.046 |
| Tritanopia (no blue cones) | #00888C | 0.070 |
| Achromatopsia (no color) | #757575 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F7CAA
#2F7CAA
oklch(56% 0.103 238.9)
- #A16430
#A16430
oklch(56% 0.103 58.6)
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 #2F7CAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.019
- Cerulean #457B9D ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.026
- Dull Blue #49759C ΔE 0.030
- Steel Blue #4682B4 ΔE 0.031
- Muted Blue #3B719F ΔE 0.032
- Stormy Blue #507B9C ΔE 0.034
- Windows Blue #3778BF ΔE 0.038
Use #2F7CAA 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.